{
  "manageEntity": {
    "action": "Update",
    "entityId": "708281325",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbbe97ffa7d38e259e4c1581ac1ab1a824fb0a74e0dd58740da24b8a3ad3c4d79",
    "signature": "0x8e786f313b13493c272ebc6848cb4d697c4f6f379bdcc634d6f3be12b3768eae2e9b3f920d66b3cd9534af1cd57130cefd178a999075f3c1f72f68cad57661b61b",
    "signer": "0x95039C5e9fA958bCe7C8bD76e20eb23F4E531e54",
    "userId": "708281325"
  }
}