{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172280",
    "entityType": "User",
    "nonce": "0x2192020e48217babe59cb0a9a52026fbc0c6a8492f94021dd943f834e305b14a",
    "signature": "0xc22d95a7dd11481b8e567bf0d75835f9ff26a81bacacf67759051e58fac58c9a45c62955db0c542f9e4872818f6a93b5d480b58b5fc494aa822d2f7236feb3b21b",
    "signer": "0x1d7977a438bBF99AafdA2633A385c2989813552f",
    "userId": "447156818"
  }
}