{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x5385b2dc8a2bd7a1d4d2ba521d8124831b83bb6b0c76a2f7c0fe5752fca402f4",
    "signature": "0x9e1c87843f6c5eca6ef456395ead81249283db2a4f378c1fbdf0fba4055240950776dd1bb9ca53639c526862594624d770a779d423571fbd8b5534958a2979031c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}