{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb348fa9e1abf5e2e230b8c7cd11393a8ead9b83bab462ace218d2056afef2909",
    "signature": "0x22c27ffc914c4df37158a7ea8000401311ec9295f94eb70a464394003d389a783f3b812bc562bc5957655d530ac1f652b51ec55d51ef39d95a9e6683eb55e1931c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}