{
  "manageEntity": {
    "action": "Create",
    "entityId": "110869952",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"data\":{\"title\":\"ContactFinalMast0426\",\"genre\":\"Electronic\",\"track_cid\":\"baeaaaiqsed367yfbt3bt66cnzz5ytk5llcz63ohtpyxlu42fxvpdsoo43kom4\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"duration\":330,\"orig_file_cid\":\"baeaaaiqsecwdyuq4f64c5dh6ibhn4xruicso3jsabvm3g5bol7ofeexwqeo2e\",\"orig_filename\":\"ContactFinalMast0426.wav\",\"owner_id\":923029916}}",
    "nonce": "0xefb7a9cd3f920f17ebf80560aa08d7bf83820e825252a838148c6c7efe2ef59d",
    "signature": "0x91d58047890bf217ea3b4a2b7b1bf0a39b8582ef7579d64813eaec7fdb7bf4556de256a1c8d44eb1f16169f3c592ece473035ae71b7b5370e3911891a276bdfb1b",
    "signer": "0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5",
    "userId": "923029916"
  }
}