Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07786174cddc58d6dbe6ac44b76ae0a027a3c51a01ba192638175abbd65f77fa' 
  AND token = 'jWwatLPqsumK5lidy8M8RNyAkHYBG8rufxqJO+LK2ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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