Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ddfb8858bd54346f17988d74213272c3e01b04e5127bc2594987b4b24e0b267' 
  AND token = 'RpL9HtUH0ag+jURnL0SiWFIIwTg+0GShHi3msdAdUUE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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