{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb0c85a8a3085cffe5aa8fb0a2630fcacd23b9bce3f2c94d1eb8de639c2534afd",
    "signature": "0x0eaf24cecd6273c5338a4c518adda226ddcea05d90c0f27a713662afcf9a7910708efd217d62b36a40ebf56229f65484d64114abdc0f66f3ade614872527ec931b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}