{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340875990",
    "entityType": "User",
    "nonce": "0xd132f0f8ddc10d2cb3c3be664afd234e3ffdc8dfe3a5d7a6c1fd36862145a53b",
    "signature": "0xaf671c969998d86e7cad77c9a0b90b39662de376af7399bc39e9a21810b7ff5b4dd10d8c6512891f6b2053cda09c5f9d1e21a20d07062367774a3a286b7795c51b",
    "signer": "0x999a09Ee6Fc293426f0474e5729E93481D95f6ec",
    "userId": "241541029"
  }
}