{
  "manageEntity": {
    "action": "Save",
    "entityId": "1066622079",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2b0d0804f7ece282229bc7fa36d30e9664b96feb62435a15d3acd89b55f53437",
    "signature": "0xfe22b05976b705bcd97574ae838d7ff584880fb2fb1994cf8c0837b4b7dd735b479bb001279446d766afe983bbfbefba993a4cf459b01fb5d92f15d54b4cafa31b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}