Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1136b096a95ea2cf9f1b9dfec9ded09d0c5cd7927c020d62f19aa130b4f36fe0' 
  AND token = '0NtvGK5sCE3QebZcLvsWWwbw3RB8ivw8vUXNj58EHS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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