Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04c428d6b3ee5077da1ff00bbad09dc4483b19cda9f93552f6e64654b063982c' 
  AND token = 'CSZeMG96hUks9/ijBu55I14WXPbswbFFtI5iqQLaRP8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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