{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x15ea161042eecc3663228f7bc2d8e4992ee706693b3cd33487f3b0c0c5b8d429",
    "signature": "0x8dca8bf15ce12f8f80b979b7120ae85ea4b7f4e8f547fea40083cd9132dab3ff4b362531a054d6081d3f64434cb87eff0aeea26d909e9be062e29db211f8776a1b",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}