{
  "manageEntity": {
    "action": "Update",
    "entityId": "548107023",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb88e4735a7a475a1ed1c32c444765870b4d7f8497c95bc0b12079677cda88c5f",
    "signature": "0xebf678d33b53444eaa25c73ce5ca25ba5370e9480a72532b7a081294ed7b1b5e2765c8cdeaaf8a11e2090b3ffba628c7f2494b0f6ee3d6b4327f520be3e62e151b",
    "signer": "0x6f4f67A10406f9800A35FFB82F5B17431982dA70",
    "userId": "548107023"
  }
}