{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe25f4c7f94a8dc05e2313d01df5ca95b26cf50ca73260d825f4647bc47ff7c40",
    "signature": "0xa3b2c710fa54615530edb518e95012987bf828a7fd7f62464f3438ba1064f645147440fa3069f87ee80968335f151c917347b1c6a914a604d2bc90ded9afca381b",
    "signer": "0x76b75C45DAdC4672DD3a4f5B145627CfFc2d451a",
    "userId": "263196891"
  }
}