{
  "manageEntity": {
    "action": "Save",
    "entityId": "101013",
    "entityType": "Track",
    "nonce": "0xfe36f14f085fbe44c1a0ee1a00cf6eb94ec8c2ab8fd743582400fbbd69b243aa",
    "signature": "0x5bd8ffbd492d97829982218aeee869104ae242fefd4b0413f517e395d98c07900453d94f8baf55c4527cfea2cdb9ef43affb11046ced3ed80a1c4531bc2fb9521c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}