{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0xff68603b8abe47e73b547143adea8062b7ad09fd05594431daffe29f2a3f5166",
    "signature": "0x4548011c97caf55740fd87f687f2a28a666cd38bc6a4d9c27a21759333e1670401889296f25ca29a0742f698480efbd9de00dd4ee2dfcfdff6b6241e463ac4a31c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}