{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xacda3176d34e44927af086982b5787e3c11b7fb5329c7fb9ee1328a19e459d9e",
    "signature": "0x09f2a4bac38fb8893043e2e41c8ac4a71fffd3b76a1bc048bbfa6509f435591115505074fa6e563a5f572963f1a533319a50598c1f18bd4a86a736a412fb8b591c",
    "signer": "0x0D2c1331F52a98aF1Bd206E3C28062E717CA9E51",
    "userId": "597927803"
  }
}