Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b4af5e199ae9c5b71131610305b8f8b0f0d2d47ca78ddc322a27a119534fe20' 
  AND token = 'j5TByyX11+GGJVHqzH4S+BhoTpIS+sX16dKUS7HEVd8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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