{
  "manageEntity": {
    "action": "Update",
    "entityId": "186322118",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1367cc1439f0a38e09b52deba8c1b57c0d6d5cf6e5f97cd51c594d50f157fa77",
    "signature": "0xe9554c5d44de3716fb7a7ab452e8db0832e10826e55c077cab0a2af0421940512654935543c31eb8002c32343041f961cf7de492fed4ac1d65aacdb48bf9154c1c",
    "signer": "0x5D2FcEB6995f043Da8377A1C642D3AF87aA3a2b4",
    "userId": "186322118"
  }
}