Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4112bb9c03b208a9f75308502199e3728f6464dc335ff2be30c7d73bf4371e45' 
  AND token = '+3tnNd9wmWPzbLKXGqK9yEJhqeMST33uNCpeb2LXxds=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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