{
  "manageEntity": {
    "action": "Save",
    "entityId": "1062693",
    "entityType": "Track",
    "nonce": "0x128954f77d29c052f71034aac06d2b1c5822321d2984c597b21f877d3390b919",
    "signature": "0x602e74b89056b10b8dfbce68cc34c989734882690fda148a73246b7e1fc7f4036bd1bd0c13203c4f23b1a26ce56c45d5c94b5e220462d333c0e9b7d9451a969d1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}