{
  "manageEntity": {
    "action": "Update",
    "entityId": "81310677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c7c83f583282f81c5656089743000638b81a3d3fe44e4bffe50709d53eda84a",
    "signature": "0x1e7eed4a2fbbe7b12956fa9fef7658bf42d21ed4d35e415ebd5356b735b6928b75d5eeab8e87c681a60bb339e71ee1157d81ecb7952bb4e9ef2a682210dfaab51c",
    "signer": "0x867107DEcFB40F44c48D3a379C9aD33d78003062",
    "userId": "81310677"
  }
}