{
  "manageEntity": {
    "action": "Update",
    "entityId": "201996771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3l3g5ely7flginuu4youwcrh3kiisuua2bzpufek3kiup7gpi2ka\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":307500135},{\"type\":\"playlist\",\"playlist_id\":687665635},{\"type\":\"playlist\",\"playlist_id\":1030097955},{\"type\":\"playlist\",\"playlist_id\":1624144911},{\"type\":\"playlist\",\"playlist_id\":1883164321}]}}}",
    "nonce": "0x8d81bb2a2289771801781923c18d36c903edecbadb8173b2b0758a8633292f7c",
    "signature": "0x6685fbd65873c044fa83832c1dc56a1cb3d3ada6aba03d2de9841eb682b3a8f97aa7557ccea03ccf739572d18a563013280556d279420bae756a9339e81ff6a71b",
    "signer": "0xd1CdfC852326b8427841805E9aA02D39705c750c",
    "userId": "201996771"
  }
}