{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa05026d98250610073fdca462ef9a8eb51b6157b81462c2ba1188763ec588e48",
    "signature": "0x16402c91ab06a07fa5abdf63ae0ffc2f92f04339e858044c75efbd24500659c304d191a9536822f361b60e442d5543189a42a1eba04f8ee9c27f81444e0a06a21c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}