{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767835665",
    "entityType": "Track",
    "nonce": "0xdc6289b017656ef66c5ddb11fe05b0a83386d24614efb38f6ff2252ab7094aab",
    "signature": "0xe3bcbaf5b2b6e56c70f0c51a34618cc8fad7ca973ac5d28503463e200266797e460add311d0baf7e23998708f7c0b7088683155fa2106c32c40b3b8467aa27b61b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}