{
  "manageEntity": {
    "action": "Save",
    "entityId": "941858302",
    "entityType": "Track",
    "nonce": "0xd7bd6dbd24765818b63826f81e15b2b1fdbb8daf98e70f2174c48c96e925e2b0",
    "signature": "0x3dcb23260b031104e7cbddfbfec5a46b3dd9696be33909f398b183ed828a2f8d51232d2c53e5dcd69044a17a539be14eace407f79792798eeaea02c14a5988ed1c",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}