{
  "manageEntity": {
    "action": "Save",
    "entityId": "35338",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x96948c4fdbe593703243af53f1b48f03a3bfef2ac6c46d407a7464f1b75e39da",
    "signature": "0x2a1bb52cceb52a7fb3b05b47d08922c4205cebfb2855d3e0de33114d256876b97ad306e507232033f52a47879fe5a1d708af066116d24b08dcf1ccef72ae0a4f1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}