{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "819568368",
    "entityType": "User",
    "nonce": "0x83995765871a981c2d1448571e2884527c78c0ae0fb5232b4e65f6ee53768a44",
    "signature": "0x5555412f2b45c3d70f7d6f898889bc9914812c78b13d0e5417e45dbeaefc77a813353ff3f80cb67ec7c18943cca6e4b062b981a2908a351262f038ef242940641b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}