Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ed44d0536e0974c2df354a92e88e9bf21113c86805135ac28cda039ebe61d43' 
  AND token = 'vMfmm78A3eeIrM73c9v8mlHthc8Fbvcm2fPAnYLy0n8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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