{
  "manageEntity": {
    "action": "Update",
    "entityId": "804228665",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa1aac9836cd6a672937e60e378524f066119b2531025edb93f943a41ff1ce789",
    "signature": "0xb88f3f8ed07816f7a396b6608114d936102a6e6a8785becbf29f9e0e1ca6936e79f7df62796d7144da2154a89173129a0fa5e6f6fce9da2c4a0f49860f08fc2e1c",
    "signer": "0xCF10D444bcA82E222517AA6402Ba1E644d7973c7",
    "userId": "804228665"
  }
}