{
  "manageEntity": {
    "action": "Update",
    "entityId": "902811065",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9612cc2e7e79a0bf51012794e62c870344e7ac06e2f3c1fe8e4cd31d0c8d3306",
    "signature": "0xe481b7b9677c699be68bf9821e3f88eba5f5cc734c88a4bb35022dc464efc4367046527e019813da9ad71200ed47d44cff88c8e2c8a364858708bd0211012e751b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}