Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c02e6476b142e7979b74772ed34d62c47f9f7a5f79513688f5b5494b467992a0' 
  AND token = '7mMWZwaIMCcqeirHeZ/pSOOYfWKUL1MOiMv1s6Iwdtk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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