{
  "manageEntity": {
    "action": "Save",
    "entityId": "1770136043",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa16bacbebdfdb8f0ebb3cdafb039e1a03b5dfb8e0adbb030e0f1cf213740f613",
    "signature": "0x84cc32becdc794b64a0cce48d289dacd42827cab4322c84de9fc5e9339c5c10e5eb2ee96777e7fdcd88bf7db374d317813aac99320d5ec12d3c03c7253bd5a401c",
    "signer": "0x3115988Ff9a4d55153BE4f41478C0d48aE97D53A",
    "userId": "874590393"
  }
}