Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0131382d8dcde9b42fb9f0176f4acec65fddb8ed42e53ea167eee8298805a687' 
  AND token = 'rybFTzv9cyaFFkxaKju+X0fI3VqCTyvu1QkGknOQihA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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