{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9ebc023f9d1cf44fd80e2361f2382883f874db4a906c1e6c6bc5e91fc2e8b7af",
    "signature": "0xb220a3b547b18abdd0cfad2f53d43cf5a5f2466e6b47f2bfa5caefd737a81fc40a0a1110221c5c600964f8e0be8ca0979f94ebf0a598b2394d7e0adacbb718f81b",
    "signer": "0x8630BD2201Fc204d20adB866954f02208251668C",
    "userId": "72079189"
  }
}