{
  "manageEntity": {
    "action": "Update",
    "entityId": "412599210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x87b0aeb39be6f3a0f7e23911b66e721fc670f6d53f34eeed0dcab559028de621",
    "signature": "0x05e06a07220e39e390ed6d5437f55c41cb714a2c09059ad82c2d25d70c71b75e46930e9f1aaa39b4747b9c3fe17cc6c14f03a5bd644fdeb4463999792fb4e00a1b",
    "signer": "0xfb5377b2Ff33D3534FF2cB07966F62D256DBd94b",
    "userId": "412599210"
  }
}