Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '477d3c5ea66d3c06b5d2c269dbd3d011aad58f00273e873730e36690e158698c' 
  AND token = 'tO39upc+u5WBke5L6MJBU+u8Ok9eC2qomGrOeMUjlpA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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