{
  "manageEntity": {
    "action": "Update",
    "entityId": "773538305",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6a14f224bd98cdd5f3cc47a4c0bda6e0ede35551011401003da0b82a19274b3c",
    "signature": "0xe96ddf2f33934836cff31ddc217d55ff6b1425c5e8a0404ec3dbe99fac9fa0b233f8171270f9082375240fc32aedaa0f4636f7c6f595fc715a5c0dc26bef056c1b",
    "signer": "0x918D9aAb6C3d5BE29871874861419bC1eF929e9c",
    "userId": "773538305"
  }
}