{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337227",
    "entityType": "User",
    "nonce": "0xc6d233d010be0063a6270f436f2b8018f2ddcb7ea77c8c54aadc94793118ead5",
    "signature": "0xae69e78902daddc8c676c441cb4e2844075c028836a14f005a9dc9e41e6d0ae34a65674ecfb03923fb8aab5183be0ea0dccc5919ed94f95e689da14498bd524b1b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}