{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x289d0f6900c510e83fb0776559b14f6820fb7fad84b578ad8c1c3735b4edea63",
    "signature": "0x332daf2684da3a7d3750b77ea63b6f6131cf299dca7b612797db4c139e53f1780dc0f1e807c083970f438501d5a55dd46512aff1b29fbe96f2249243adf142761b",
    "signer": "0x378543D1f467aD15E6688fa37eFF55939dFEDFc2",
    "userId": "200959284"
  }
}