{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200945",
    "entityType": "User",
    "nonce": "0x023df1cd8986e0be004629c1fb7796fa9b567442cd4c5777b2ec36301496ace1",
    "signature": "0x55dc8a635c5adb8e181849539423bebb29222a2e56fa7a531ef09733e1c22850195384c44f8d2c2e47deee785c36290c617de406a02a38a8e50c28208d37e8c01c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}