{
  "manageEntity": {
    "action": "Save",
    "entityId": "70380",
    "entityType": "Track",
    "nonce": "0xd57d5375f7002b763032ff05350b54e34efa2df29d9bc7b641c03fdfe38e74d6",
    "signature": "0x25ce5ffae0d2d3f0de5a3cc4108bdc7f64d748f9616477c692fd352f15bd8a52071067d78a33a448cb209372fe98574da0aa6046e03492e9dc5148a8613225e71c",
    "signer": "0x90CBf7c9BBF688fd9Fa4029B96e1BC32b270cA24",
    "userId": "711459379"
  }
}