{
  "manageEntity": {
    "action": "Save",
    "entityId": "2034580808",
    "entityType": "Track",
    "nonce": "0x3f041ef5698d27932466b19ade40b610bb1c7b37bd989837c83f8f0c1b4c863f",
    "signature": "0xbd31c078e938254233be924ff80e6b55ffdd711b4f404052c2dbbf0c7f75e0252ad1b15520d50127573b8e447cafca1277e9508d19feb8169c7d127df8fac0ce1c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}