Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f4932a771f3b96fce4894d326e1c40163b59fb987411e9434c747eeb90bd30ec' 
  AND token = 'yGhGk1HrQd6q9M8ZNDgqiX5mdVbIOE8fesXAOFI5MGk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00055

JSON explain

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