Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e70a6ea476f65e77f799236476ffefb604c88ca7b92ed9c55233a5d4d544f5f' 
  AND token = 'FwvwsQ9r/8la7pznhDiEOvw3FgsmpinC7MEe1mYoHD8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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