{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8e18a8ae9b64c9b3eb96b1ef17749b4e30871092bc02aad9a091416e2fe66993",
    "signature": "0x6be544495d2692b6f4019360f4c8912a83cf8322695267e57326cd07d69d6f8a3e6a7a2ed0d0605fbc536df095b22e325c1433dbdc6e69620b40fc726353b25a1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}