Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06b132d4f4e219e277d8986d6c06807787099683dd6384e96e00fb60f3973c17' 
  AND token = 'SZ7Wqeyyuwgv0tKicrWTsnvibRRm6jeLXLLm4+2XpOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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