Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96fba14e270b7fba99d066860517ee83e4381335a4a93fe7c179d6ce9005ca17' 
  AND token = 'KLHPlzUHavbk2DL8bwpKqFH8tu3od8IOUSzH4GUj7dc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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