{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6ade1257960016a43f53f354860fe2da054aab3e0b73f2b348d805aab1607aa9",
    "signature": "0xa050be321ab1c7d978c2e5b465535fa9eb548e54089849e079964f0880dc738254fb9ddeb1c175eb681383406a67e00afa480ef7c2559d177c15a00c6d2e633e1c",
    "signer": "0x016CFbf1D901A8C261338362B9DBc25A5a89C50C",
    "userId": "855099892"
  }
}