{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032932420",
    "entityType": "Track",
    "nonce": "0xf306d23d458839caeac67d005c62ee44536ba4dc505588d3411a708ca8c8eee9",
    "signature": "0x6a86e973165a7a895144acea7dbf4b878aa5d4980d28a15581029688301b084c625888fa8df0e6cfbf7a25eedbfead2c3e97c1996f8c42ec5938925d936d42221b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}