{
  "manageEntity": {
    "action": "Update",
    "entityId": "913381286",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6c878bb01cfec86f737f5c599f641c650b47ed74e0cfb22eabe532995a2f043b",
    "signature": "0x80462feb605c74292b9ef24c4e754e252bd14644d2cea841397e326f39eafd3d5b5183dd5223e132cbf8e26a72d86acb9bfe0f3015e8691f0eb3ea84548b75e91c",
    "signer": "0x1D7dd4E8c0E6e89fEf3dAe4C379eA88DdC3a9058",
    "userId": "913381286"
  }
}