{
  "manageEntity": {
    "action": "Update",
    "entityId": "43933168",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82999ab4e6c82d11233c1ac43e51c2ee8e26711ebb0a0413b2e93a424f058e7f",
    "signature": "0x8d343ff166e844bda1c544217d995a3e8ca568036072bb7acceb8ddfd55bf8d43daf6f0030a4f5287d3f17b2c12de48e6a73b2b7c406f40efa986914082f0f5a1c",
    "signer": "0x8cDab4bAdD2D0502631325D9eaa877865F6c8981",
    "userId": "43933168"
  }
}