Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e143e48879ce174643385a5fbf74115c4f7fee88005c868f61892bee3f794620' 
  AND token = 'cXOFfi5JngfxOiIrAu+t+Vds3KIslYINkZImppYFjMg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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