Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd0b6de6ef58929192f5a4eec381f6fca8f4d0aae299ddf99bfacd1f15c2d550' 
  AND token = 'R5rPjmzKyS/1VRoGN2cYz5Sp5rgNznjBH3njdfiHfvA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}