Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '544ff1281d341983bfa5d5b475f58bf7f8159108173bef454f2a7b9cb55c95e9' 
  AND token = 'gJ9b+yFkVmzIXfKMYgTHjJHu0nH/yKg+THmy6IbIFms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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