{
  "manageEntity": {
    "action": "Update",
    "entityId": "296986739",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x54c2f663c30d5555c37873da74dc20dd8746944c8840b7e9f9770ed350fbb8d3",
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    "signer": "0xB852b54Eba8b243381c477d0658ba10B5C98C6eB",
    "userId": "296986739"
  }
}