{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964612383",
    "entityType": "User",
    "nonce": "0x9266c3c6d47adbe82fa0ce088f38b94a484c2eb0c611bcd17c4c32aaccebe5b1",
    "signature": "0x12658a1d5987014185594ca04781d970e2d2a209e84f818bf0f3ab282e761f381e55e02eae969ed356308b9f0b2f0224581e27ff7994fbb535e36f2f1c9e7c951c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}