{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x5f22815c7eee489b229487a48c9fff4f6a741ffdc6e1fecd9bf6fbd16115b2b1",
    "signature": "0x77058b7994293315b506067e11c9044eb4eab963cbfa59aa228573333e34c68f2c49f29cb6e21c96e2cf1418fa528770784925a24ec23a50ec2ebe7a1b756c0f1b",
    "signer": "0xc3e03c21664729d32A8E77189667f4cC5091E233",
    "userId": "498109"
  }
}