{
  "manageEntity": {
    "action": "Save",
    "entityId": "1246485514",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7b2c71b9be9d295527cfa555cb396733a942565243a924a772805c327b4eef74",
    "signature": "0x0c6112ea719040d426672e32f4c3194d9e8597a7cc8fb6095b6e38dd429bda40510576cba343924c24a4db1233d037cdf32ee1d2e6195a0cd6a999d0487e871d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}