{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x529dfc17b0bbb590fc248c805338132b501dfd681b252e825322839af306b1df",
    "signature": "0x1b797d74bf8e9fc9b872d1bb18ef6d8691e59bce1e7e9de97e5b105d15a2fb510b35b27152b21da9116b7ad4bd89826544905e79ef04158ce9bbc3fad0a4d80b1b",
    "signer": "0x7BeE6A029868871221bFC265e0DAE4553A4eC744",
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  }
}