{
  "manageEntity": {
    "action": "Save",
    "entityId": "417152068",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfb9b58492014a1495c665ac7ab03d7e602dca5c3554d963fb48c7cf390478ce6",
    "signature": "0x5b56aab7a079f697effee6e136dcdfddc4b771440d0bd5c71fa2d795caba19a7486b4d4881d050b671ff41cce0e894803f5ad1d7a898bf6fd3552f6537939ece1c",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}