Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8feb5340d1970d7e56b54411f842b3c37c9bfa0c7419cf991bf2ef9c07f40d76' 
  AND token = 'Ce9nCYeQmdR80BE4gj1Cw324LRnZomtwK6fkjXA7u+c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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