{
  "manageEntity": {
    "action": "Save",
    "entityId": "985505258",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5ba5357143cfdbf8c1104cc1e7b66366e1d72cc229e0a210d42e01e751ba37ae",
    "signature": "0x158217c52c7d11d8caf356ac37942f92cfcf87ae7df00c69ec4c24e79e17a03b0dcf2c87f52731d2195275f0607380afbffcac00bbaa3e1521e6a47ad664853d1c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}