{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa35c971eee9b847e50cc5d199a69ec0b38e80fe2652ec9489b10bdb96e98bcbd",
    "signature": "0x51cc9d7eeaee99fcd424bbff7b627580013df257e079d03e47ef68149aa7e96318d1fd59b1f0cee9c669862ad219243ebc313bb9f21bddeb8da9033f0411addd1b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}