Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77389f0b126f28a93166c3d28255c205ac80df2d8947409182cc6860021a9254' 
  AND token = 'vdAQsotqZSkjTFAvH4ETvgNOtbX5G6q6G7Ym06EB+9k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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