Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72fd65a638d4d977b5c62d6b2f2fe640f18e805d7dbbea7dcb037781e78a64e9' 
  AND token = 'fzyi5sx1oIJBkeq/k/aau9/RdZZkSj1E2TMDtY1J3/I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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