{
  "manageEntity": {
    "action": "Create",
    "entityId": "551297388",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"data\":{\"title\":\"Kyle Neff-Lights Low\",\"genre\":\"Electronic\",\"track_cid\":\"baeaaaiqsea6vmj2w3e3wlcci7gqyclxz4fahwlp5h3imuk23le2qupop6berk\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"duration\":193,\"orig_file_cid\":\"baeaaaiqsec4cnkwwoceaikdsa26bd43fipc6t55wgkjwx2ikmv75bb6zpep5s\",\"orig_filename\":\"Kyle Neff - Lights Low.mp3\",\"owner_id\":410246880}}",
    "nonce": "0x76cd30ae485e37a23ea4e17a26e7851fc1d62abc0d23a14e078362d2ae4b4907",
    "signature": "0x6da1474a75b44f091d9adffd5855cdb2aed2a75c4d86df8af1c6385a2e982b9f16f713e359730a0d17472c97f3d2f4a32572640a13640af6bf321664f6152d2d1b",
    "signer": "0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5",
    "userId": "410246880"
  }
}