{
  "manageEntity": {
    "action": "Update",
    "entityId": "289199241",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb1bb33f5fb22bb539541fa1d6b2d1713f34973a04837daa4072cedd9a111c1a0",
    "signature": "0x01adcc2479e20dc50fd6e77f0483d1df21a2d3cd74c55cc375f159293c3beff4427d8d74f356973853d1075ceeeea414aa0c4e62936a05ce1f3658182d1ff45e1b",
    "signer": "0x61861194F826F4984942E6a42C41DaD4412C3Ae4",
    "userId": "289199241"
  }
}