{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208551",
    "entityType": "User",
    "nonce": "0x4ea9d93fffb23186a06e5ee708474b7c203615bb9c624ae5ebdfadd6d5ad2ca1",
    "signature": "0xe69693e46bf4b816998cc3baa659669feb3c091032ca810739990beb406d35c47c7ad9102863c20a3e487229351f985e84039be0d256dbfb2beed6308330098e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}