{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27669",
    "entityType": "User",
    "nonce": "0x9be356e4587b5e33b3872113308bcf07bed63bae805c2b82ab0267cf7a14ba4b",
    "signature": "0xe74c6b918a3e294dd8eadf92ba954d625c3b0d97835b8fba3c19cfa814477aaf3ae0fbefca17e29dd7ff4416a72d1b0dc9adfa031f4b5458e04eaaf6f9bd093f1b",
    "signer": "0xA7D206a8f2b63986B1Af437a01CFbCDCcE69601e",
    "userId": "856769027"
  }
}