Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '719229c7341b457a8edc054b00339290d2e1001ffeed727d82bfefa4af5dc0f2' 
  AND token = 'hepz1uaPQ6nhjC7j7HU0fs3/lzEanXu/qTq7ZYzeCrw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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