{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0xfd197d1f6f92c641c53d4e8dc1ec0109bec4dba3b6b280694cb9acec9591b669",
    "signature": "0x52c13becc48223e3be8148281a51ce68c523a4bb97ef99f3f9e3a5ceb725224f75d155e824aa88743e35cee86d9e73f1505430bf84fb4ff632218c8ffc65ef741b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}