{
  "manageEntity": {
    "action": "Update",
    "entityId": "117638061",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x859c1bda121fa371581aeb22ac049ac2d49790937a9af0a1a8cb270866ebc741",
    "signature": "0x1c1692b8b566f7e0819eaa0acb9b5a167c8b0be00cf6612783345c7ebfaf029b70b06a8c8aad3469a241cfe918107a9565408d898bd266a36b7072eca5515d2a1c",
    "signer": "0xE7Fc610afe51483AF4fB8fb5F981AC5843548D77",
    "userId": "117638061"
  }
}