{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6a57baba7fd62807f9416a8fca30cafb6f1ec880bdb873d37a21d2fcf9ea8a97",
    "signature": "0x0f04c1b5c8f0b1d310c6b6c664c4518c0ac0c0202f5968d0b360dac6ebeead1f7725dfd06c23642457f4f1e77f10e716543967fe40ba23711eadd9df95ba59c41c",
    "signer": "0x88B27943F74D36094296911Dd903a353d2149590",
    "userId": "410246880"
  }
}