{
  "manageEntity": {
    "action": "Save",
    "entityId": "1761447376",
    "entityType": "Track",
    "nonce": "0xf0cb4b1733f553202797357b304647b3a5425d73ec1ae522fce3b419b3163fd9",
    "signature": "0x26bb45d0356cf7ec42c0a3ed8945d9981ae862c76d41d23a72e3406d1c92ff515f202c44764529999e042cc805178093af0fd38be2d5db387b1f139da0c3c6b51b",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}