{
  "manageEntity": {
    "action": "Update",
    "entityId": "903251667",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcbaad4083b4a47c99306a51e09e2e09a124845fac842d60a2422f2d2ebe20e0c",
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    "signer": "0x0bADAcB5BD8eC37096c8448C192eA49B12c4A1D1",
    "userId": "903251667"
  }
}