{
  "manageEntity": {
    "action": "Save",
    "entityId": "1771603744",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9a2a454adaa41b7e45eb774cbe1f242e71920732e6aae80bbda23d874659dc1a",
    "signature": "0x7d5e57e52b9d07f7af217fd35416426a1edb30ddd7166a79e614d61514db170e7b81256ee06e12a999b4dd8d5f4f8a2ca8e51bb3d74d68415d00d834f6f5803b1c",
    "signer": "0x6eaB1F32D4a4155091cCA4B359a66D9BE34f8E10",
    "userId": "794729759"
  }
}