Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72dac3500c48a36407777daf13be6a57d6fdbd6b90926df00c173cea7d161f01' 
  AND token = 'FY805ISIh7vBcmB50UolMvDQqGYvmNc0I9Q/Geih1M4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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