{
  "manageEntity": {
    "action": "Save",
    "entityId": "695797065",
    "entityType": "Track",
    "nonce": "0xbb1ed4d612fd582a130ce57ff8c3be2eb6b7c88184876cd9d17953f4bdb7e33e",
    "signature": "0x857a3ad4e61878e075d1beb3d1db0d1d91f0db4b1ea12cb095a89bd4469845af7823dbbb2f5f206a996760d0cea6de09e9db6ba6540e65a83d714bc275e9e72f1c",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}