{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856252928",
    "entityType": "User",
    "nonce": "0x84954db0cf715229443a6b38cf2347c59b502df58c164417a7c312179afc2cf7",
    "signature": "0xcd6d363aa3bcf09f5c77cbc6646e0f0763ea4c4012c6db9fa9a585627d6782dd45cdc578b8d29a831c3b7b8c94299f9f7693cb8c7a34f16cdbdc15db518a0bef1c",
    "signer": "0x3776E1D82Ebf03656FA9D03C18fd5B58D7Ddd337",
    "userId": "83331354"
  }
}