{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xf0f7c4d2a39035111266af2355128eac1d84059ad888ec8bc4c44694e1807a27",
    "signature": "0x74fac7f5fa3caffd03c4848a3c36d5ea144084455b386b990b0f16c8b9aa935655c0a201d9ced4f69e82380749b0c4eda253cca78a3429db94f35a7cec16f5d71c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}