Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '109af994506c2ef5d7ab9f89e82bd40b37ef6c71a9793a9dc7213124271be7ae' 
  AND token = 'dgLr6EBaVL8suSjpB48v55pDdj7vgHJymjwbOYQaxD8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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