{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0xcebfd582acaaab8c681588221173c8779fdf359ab0bc565f282a3b9fa3e20405",
    "signature": "0xeaa9ec8a64d1ea92cd9580dc5e3b0da0e28a83c3b6c928f43a7a2839557439c06700ff576d2b51073f7e1951e376d1fe08c701163bebd2d4e6dfd732e78891a31c",
    "signer": "0x863C82520Eb1F5f18ac7a72e9bE14002362A6C4a",
    "userId": "19891649"
  }
}