Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'df31325cbe44acba75a4e01165124af804d10e9b0107d2054ab7fec7d6a9b096' 
  AND token = 'Rvtx4rm9bljRy4q/wbf6vGxjruYYAJXSqDp4TG0KZG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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