{
  "manageEntity": {
    "action": "Update",
    "entityId": "187311181",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63334b361f010acd8b17a2939a6b5c4af6e810ab91c769efd39ea7c94bac03a1",
    "signature": "0xdcec00c2f998d5aba9ef51fb2959f000b05c7f3ab55f3948559d2d4ba6b5655949fffc8a5db9e45efd76ef33a0b01cbb24eca694d22154e8eaa7aa7598612f9b1c",
    "signer": "0xcC92A44C4BcBc4a5Fc9680Cd5C1473DFD584F88C",
    "userId": "187311181"
  }
}