Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'f0e9b33a82bff40662e1cb7f4a347143fe107caaf0e7fa0c5ebc712c1fc1f44a' 
  AND token = '93d938AuPbU16wgszronmzJc2dHRmySUaKLzOIhPC0w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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