{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1930801",
    "entityType": "User",
    "nonce": "0xe4d5a7202730e71f9f0f7cbd22ef357ea5f0221af91bec38493d3508dbcfbdbf",
    "signature": "0xa0cf31d41289c344577897635aa6b67cf7686139234c0ba6a0783a657aaaea7254ff5dbd7c23edcd08cd4a69c7e1d35bcdbecd2183036f4ddaa76c760079de3e1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}