{
  "manageEntity": {
    "action": "Update",
    "entityId": "785339148",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa5c02888365714293112553f9aed656ed2323c2fd6a603443174ed856781ab05",
    "signature": "0x99d60658880b92680eee5dd083e96e7298b29ae919e55cd12046519a9a07a5123cb2c32c9526e777f7c6070908b1f0b6e1a4e249ff3ce47114b0cc437e4f42181c",
    "signer": "0xF924731fC39A466225af3a1ba9BEB82D48257Bc3",
    "userId": "785339148"
  }
}