{
  "manageEntity": {
    "action": "Update",
    "entityId": "935333912",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x03aa0b629f553959f4252677b5e88b9b92659d67d6fd6d1f0f9988f8bc3eaeca",
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    "signer": "0xFff22491d04e243D3932ffdB64992853Df881986",
    "userId": "935333912"
  }
}