{
  "manageEntity": {
    "action": "Save",
    "entityId": "91685620",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb78062b31a11a0804ca65ddc4b7938e3180b6d5ad4249661eb89e1dd8b1a46eb",
    "signature": "0xed3ebb2454ef426fff064c39ff5e661480e2fbfe9e8e861a954ae7dbd3eb99e15ad39f462b3c51a8e74d9affa0e12ec918630e5e297c5a42887999120894670f1c",
    "signer": "0xBe0B2B2beC4B0A46ff11169512DF7f66E775c0B3",
    "userId": "196632465"
  }
}