{
  "manageEntity": {
    "action": "Save",
    "entityId": "896681672",
    "entityType": "Track",
    "nonce": "0x5e51bc63532409dfeac21295c277af244daeda328095bc236effd6a47a243189",
    "signature": "0x33b0a8ba09facde5515adcbdb860d15eae0869e3f2f1d8cd5afe78289ed81cfd74466bf3f12bbf9d353568a63f92d013cd2c078e65e665b72ee7be1272a6cbed1b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}