{
  "manageEntity": {
    "action": "Update",
    "entityId": "595924827",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4cc480bec16703c2969c1feec1ab80e09958b60e06636397b62754d0a97f94e9",
    "signature": "0xf42385029a820be0c848124d7883525bbed51e8c505b309dea60d33e44152e8b341e5decb12e63875a765b78b49081040f7d11dddee646da75cdef34b40f468f1c",
    "signer": "0xD8518cC9A95ee58dA8ac66F2A6719aE12CEa0aCe",
    "userId": "595924827"
  }
}