{
  "manageEntity": {
    "action": "Save",
    "entityId": "632273682",
    "entityType": "Track",
    "nonce": "0x1dc2f6486debb00b6add991b325e89beda549705075e2ff192bd4e653703b900",
    "signature": "0x84331ec142ce082268f9f7562d71b462fdb95b80ed1f3286b94c9344716c07037c73ac97f51a2a7ff1c572cf7ad40c594f7a5a138e862b288f1fb350b0858cd61b",
    "signer": "0xd055993630C108E82248E12dBf56F4d055167497",
    "userId": "685160071"
  }
}