Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bb2ccc0445f1508738455dd7f26be9dd26311f0d8ad5e11f4ee4abfd61515562' 
  AND token = 'NrnnKhKLMQR+C8LmveKSIujGArymslA+H8ip6BPG318=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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