{
  "manageEntity": {
    "action": "Save",
    "entityId": "242560072",
    "entityType": "Track",
    "nonce": "0x285c10d89694d7556de1a83df8d6950c5567d9ef9fb89241b5c37435223a73df",
    "signature": "0xae18f07245c76db7d2b8e718fadd69cddd82f276d53c77ad337e14926fb2e8911f8aa4194354ca435b6541e27138acbaa9676f7149d1fe8fc2543d9b470c1b751c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}