{
  "manageEntity": {
    "action": "Update",
    "entityId": "547631414",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe7b8bc76df4ca7f8b503da185e6a1612a8068f791c5f3c4b8e775f2547d2d72d",
    "signature": "0x292fce6abc45e82d0e9620e91e6e03a454104fe3a6d4e1eb08bb6a9fc2439b211354403de018d42e86073667b8db8df200a53ee25ea97fc965a85739f153e80a1c",
    "signer": "0x5E525e13F169B08B94891FdbC996D3fF2740E9E9",
    "userId": "547631414"
  }
}