{
  "manageEntity": {
    "action": "Save",
    "entityId": "1010114",
    "entityType": "Track",
    "nonce": "0x286cdeb249471d50d56ae3e3d187a9c6ae7fb8a3d21cb77454ab8ec4075ec39c",
    "signature": "0xcb86de90ced0600647b774cc10a9ab3e2c4a1cf50dac8219a083f00e7e6b6c14678c577d840233cde47b4ce37d448f6d8cb012c94d2a37d98242062c96c5172c1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}