Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11631c6c4ca565b32c448db2d9e8fda841d8bc2b9dbf4907aa5299fc4056bada' 
  AND token = 'reW0uggS7g+uSHU40wK+T/5pJ4ZF8Ga60ZFdheeJ1/A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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