{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0xbd70c5f7d9d7bcb480ddf28910baefd0dd848e6ec8663432d0a2a36e528f9e9c",
    "signature": "0x1058d700d85f1423c566d4363bb5001d74d73a3e1535a2994ac685cb57d03aa174dd8944f38728f713cca8d0731101f96868940f456af52cf2c0529cfc090f4d1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}