{
  "manageEntity": {
    "action": "Save",
    "entityId": "1459873244",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x50c5c857e8039f69812aa36da7beef3aea3db0ca925333982b0e9dcf24125be5",
    "signature": "0xae2abc36bda07a23036de2348ce5c9146a335606caefb74917bd394db53969373047ca06f57ba18990201375fcd09c0306503cf0b2c5e2b83a6e0fec79131dce1c",
    "signer": "0x98B3f06eAEa080E8d8b1C86F1c9FD36Eb33dEd5D",
    "userId": "615702798"
  }
}