{
  "manageEntity": {
    "action": "Save",
    "entityId": "1932248100",
    "entityType": "Track",
    "nonce": "0x70ca54907db98be89c657a38bc8a040732d2a49c80fbf0d096985dc5923628dc",
    "signature": "0x05f61d63c62488337e3a39a4ada77798d0996efae1672be52bdcc49fe6d04de63f0e01313397bd75b1f8ac05860883be76296cc067a8d9ce5dfd6239ab5d09201c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}