{
  "manageEntity": {
    "action": "Update",
    "entityId": "843453110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f944953d529ac2ed9f9fa6c2c36a23b6a7d891dbe795973cb2e198d29769b02",
    "signature": "0xb1d163d96b39a4c4801e6f1b905cd9537049d2bcc7c220441c78b6dae3ce26447caca0168c403b8e461ce85d6cb7b6e1f09404a932de6c4e3ef2f11a65b8f8111b",
    "signer": "0xA13d09834D8844feeb4A161b230F2171B04a1cd0",
    "userId": "843453110"
  }
}