{
  "manageEntity": {
    "action": "Update",
    "entityId": "876735576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf537a51ce6ef409544028b9d433d8f69acfb8f1c823ed006cd492f63b947f938",
    "signature": "0xc0cf06fd2f7032b42be5cb1e1acd4f9cd545fd6897b2c88ed3d6b4e64a0bad0751719b67786cf4cd7781015b5a31f31b59a2fc50cc07c1f5939fb3129a95d10b1c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}