{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xcfb5afb2fd33ef8931da3aefe2b48f07053479ca52b471b512d68ba85e04381c",
    "signature": "0x84adb9a17e532443a706f2536792d8d2515bf560144c631ba518e2d66626c9f376504ea87d9ea9b1a23ccdb28e3faba43cd695e99c91399732caaf416ab631041b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}