{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681465788",
    "entityType": "User",
    "nonce": "0xd985a4d48581fd6309e3a903fc4762fdfcc8b71026d228f7e060e103f712d4ed",
    "signature": "0xff4caf853871b246aed30df485c8bf91ee576138a5f63146b8f56a825ca73dfa723139796651a5473d719768dcc7cc49f769706894850dd85f85c4d8acba11341b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}