{
  "manageEntity": {
    "action": "Update",
    "entityId": "662847056",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb7e2a93a3cf2611b9290c8f0bd05902997a7b80da03b56da248830bec9a67f9",
    "signature": "0x9fdb843da7034648275b95060499a8c5428d8fbce151d21bc0320fa79fc51ebb4f84201abe1d1003f090bff9d2916047a33a86d4c893856c81d1c46232a50c731c",
    "signer": "0xE13A6FCE083A5e5583Fc5b481c0Fb6754F085eC2",
    "userId": "662847056"
  }
}