{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305916",
    "entityType": "User",
    "nonce": "0xd84e041d15b20485ab89e7d21606f5d1fdbf75b2173f2b3c1ce45a6b361bf93a",
    "signature": "0x790bd1627bdc68804162a83196970493f9de3c1d410022683051c0df15112f0314655251a69181c3c6413b53548253abc8d3927b8276d9f8fc9c835c66265a571b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}