{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x689f9cc988b94f08cf3a4e3bfd3bacbf97dbf0ca8c70553f4c2f37c83e3a97c1",
    "signature": "0x6fd59261bbc64b2354d996670c8bb3352b493d9c6aab2bac5ad0bbbbdbda26dd47b04ab4a915ec4dd40e23816d4691bb0b3e73a2465b188a45c5918f940f8d491c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}