{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895209133",
    "entityType": "User",
    "nonce": "0x499bcc4587639ac68d3d522eb1c9c437a72681ba6b1b5c610f93fe24950b79a1",
    "signature": "0xacc686cb185898084d7c774be4e2470a25912ee2c4efce168c54bfbfe3272dae5b0327c517667a6c92fc42a561f4aec2f32f44a19097c3d5a25d195fc0b5968b1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}