{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x15ad49e131a6d22ee4dab0dd3c5744e754c7d69b2bb21c50cb10dacae4c4cbcd",
    "signature": "0x9499f8340c5fe73cf100036df90b0d86b65d73e84a2a500cfbbe4bb3028e22100cd640eaf2346668b04bdb5be28cde731a3d1c0ef9b00c18f5d30f31807a989c1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}