{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb664680ace6f242e694de00658bcfcd51fc3d5d28928a3335ab110d2ca64f129",
    "signature": "0x0c98c2390a157a57c624819bc2451ab2a48a178ce4f0892f4fc6777c4e5ed4e1040657fde886adc656ce2b63fe07d1f83b6d66bdf64e57e2047afbcfe83e489f1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}