Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7faae6222492227c0bad7d539157cfbe5d32df6f6173c34cf176d00853ed60a1' 
  AND token = 'gVcKAKoMaNA8gRkuTZX96DOjLbjym7l+gyHiJck6hQM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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