{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6c85405311079c3767cde50e1af78f870f09c885127947b1f633ce2cce600415",
    "signature": "0x155e32530bbe4905d4df51a320bc5cc378b67aac28ee8b695f1618493dc592f05d5493bddba5b8ef860c385263290983a45570a4d1e603d42dd92dc9746bc7221b",
    "signer": "0x944d86d5904A8Dd79481237A4C6F03Cc9F88ddd0",
    "userId": "953234653"
  }
}