Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95f8e78ad39b1db4752196f206492b3f8c26abb7ef6e33e5779706962487b398' 
  AND token = 'lqF6xxrTyb7SXxRM5JBdl7/TCdyb5Nyd6umGE+kDLAc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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