{
  "manageEntity": {
    "action": "Update",
    "entityId": "77927464",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63c0428d0c1c030f10376fb1b22dcd2589a0b0d84dce45f8718e7639cf1ea00c",
    "signature": "0x275e81f304e71ec53a4fecadd974ffd8230bc208953866f5357be46fa7e4730d02603c466e49fba840e2201133f08bcace88346e69ccc03c2803b114cfe4db851b",
    "signer": "0x9d8bc8C044591B434FEFFF5A4A6EBECdd4074e33",
    "userId": "77927464"
  }
}