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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '710bd0a9da7e7b8b6688c20b898dfc5f1d061409c0843694e3c64bcfb0472097' 
  AND token = '6brvDUkaq53M2oBpS4YIo2S+cFvx2JZ+bFmW0tNpEfw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01270

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}