{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x02857fb89ec2e3751ac05de5ea71681ed706e8ce3083f7e1250e592b5b9392fc",
    "signature": "0xe0e9b7d56ce0aa526f192a0dfbc5185b7202c9f2dd6c0bbec2a435b6634faaff066a90b04f708ee929d14331d1b09fcf311e3d96b792a302bffe3ebdf73658381b",
    "signer": "0xdA9D567B21f56d3B09080Dee9DE329F020f64644",
    "userId": "176807"
  }
}