{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399478617",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xca5a1170a70b993fa348c60299e14b488b025321b5d7eab488b5a86debea61e1",
    "signature": "0x933a4d5697bc030e8ae4dd5f072af923452b25c0c12a791ac6e3ddd3dabde88f0ab2283bbecbfcdc970ae08eb8c9a0efb862729986ff7acd38aae76e1c9714d31c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}