Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8f95093eb6e2bed1001956fa602f25b4fed75a5ec8351da365d45f0f554e2568' 
  AND token = 'aWqdREhrQwZi8JOxDwREGa2UDLJbGbDwpJtsUBKEpmU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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