{
  "manageEntity": {
    "action": "Save",
    "entityId": "1994335007",
    "entityType": "Track",
    "nonce": "0x92de0c4e61ac7151ac3440038d9716017d72063ec9f2e9c51c6a7ee713c1ab12",
    "signature": "0x2472e554296e2fbe82b02c17fdba3dd68a2748a37d8840ece5d4cf95291002247fc53ffa1d6a739ce83d3a9642e359ae12d5d50ced1b5fa58e23951b02a18d591c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}