{
  "manageEntity": {
    "action": "Update",
    "entityId": "102548476",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1b684ceaf4d377ffa81e7651d058936ac77a324ef0df7478f5124dbf6f09233",
    "signature": "0xa122d7c68541aede5a5fb3144dcf967d49cacf3fd99f77fa5b0180c97bde63bc3a1d9aa882ab3f7237132822ec2a33b10c88ede6899401d8c13f888eb8a91b821b",
    "signer": "0x82cA7Df5542CB66161Dd9E12fb343f69580ed64a",
    "userId": "102548476"
  }
}