Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e0f817ed2d88efcebd80ebb8b4269b405a9289cc55ab89eea8c75a3412762c1' 
  AND token = 'xZ0tj5sX5T4VZrFSM6aud/eIv8nBzdsf3EmVAXv9dAM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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