{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106593688",
    "entityType": "Track",
    "nonce": "0x0b7d5639a5b781a993d10b7112ec540a88e34fc022ecafbc4c4e2fc20996719d",
    "signature": "0xfc0cdf84434882cd1157c4986fae80642a11a7b20cce66885339643bf1ed1cb902e6419f87b187e76f31e302d37924d15fe2e96e84a9e25f982443c4b0a34eca1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}