{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4bc6d0d6b6143596b66699a159325fbf3d74907c66728c4db3e087cf11c3b3e7",
    "signature": "0xf203ada6dd7e15dbe9ac9bcb4fb7893afc4289dee001c935822753491895a1b14641406c5db4278e0eebd67ebfc0dad3649df6ce31f963c02cbc6df96449af0a1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}