Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '62e2d494e31e9e4b0599a93948b49ce1e63e43d4ddb25a8ac333919a12dad829' 
  AND token = '1DW0fCzQoUL4oFnjG10fMff7YmRCPPxSOXGnj4S3QEU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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