{
  "manageEntity": {
    "action": "Save",
    "entityId": "1081066",
    "entityType": "Track",
    "nonce": "0xc01b33fdb8b2201c7f6f7e0cd11b628316ab36e5a273348c4fd6b7e8027c5bf5",
    "signature": "0x6eae69ff5bc114945ef392a352053b4afea34d8c42e2540108e9067ce41f72903893655173cfeeec16d00db965c0ba630e149b4cf4636f6732758f7a1c037b571c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}