Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '34179816b87f80a38aa41e6d3dda873b680d7db101de96729a8aa5e24bf64fc9' 
  AND token = 'QqhcNCxn3RJWR0OfooBgS9a+mN+gKorq82bw8NsrLiE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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