{
  "manageEntity": {
    "action": "Update",
    "entityId": "1870913",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0f58c2225870bc912911f50a9441091096362e5737c44b8e5448761de90427c6",
    "signature": "0x744b71005335d17fe97efbd6e6a39debc2f6652365e7c668e7fc4380a68fa14055a88c54c765dba118f1d4b379f3c173f9a377e4ea86f633fb88a2f920ffad3e1c",
    "signer": "0x1cE2F33DB2a0c4041F19df291fEb25aac4c02e5A",
    "userId": "1870913"
  }
}