{
  "manageEntity": {
    "action": "Save",
    "entityId": "2032903906",
    "entityType": "Track",
    "nonce": "0x29357c2842ddc3f45847e69c46cb0c483192637454ea8a86c437473565a5bffa",
    "signature": "0x058adf0c8caf2503f33bf137776683385ba52b8e236a598a0dd62bdef7c02e227d0efb9d0e33260ede8e1441ff1bda8fc9c61706dd51dd4a9d5903fedf9997ac1b",
    "signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
    "userId": "167557"
  }
}