Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5007e91743148dde787a7d953613d8eb7b23ccc9abb8484624aae8e2e8bd75e9' 
  AND token = '9h97is8SwfZwGnOi3gcsHikI+jtLSC5Pf4ofV6notbw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01817

JSON explain

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