Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0aaa93ed92123ecb7cb3265aa17c3d54e58c29526e1f3c078ead35c8e09eb166' 
  AND token = 'ELd66xsKrciO6Q+R0vdKvXDi1tiOXy9x7RfelXu8N8U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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