Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '82a369583ae580f09c52f1f3af578faf3821521bb2c0c2b87c3793d1339a57bd' 
  AND token = 'ekPbrMcKpqDxnak7pe8ib5UFq/quLJ7tW1211EY3Ob8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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