{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340563",
    "entityType": "User",
    "nonce": "0x9e1c5c9b2ddd1180744e53a8bccb1f4f945e3d94f918ca205046629a4f1dbe3e",
    "signature": "0x89740179be70fa08a8228048cc58fc6c2ff7b4119f3139e582f38a07bbb50df428d7828e096688b8fd8d90c6294596ea11f9933f20bcf45eefcbe7d01b02a7731b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}