{
  "manageEntity": {
    "action": "Update",
    "entityId": "931632719",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc82387cb77e9284721507790da30c0fd4f2668536cb545a902d61d45713e2eb0",
    "signature": "0xa570ae9e18df987d0633428a90f12e2dea43591c34495ad089644069cc55223e1715aa54d009b23cfe3894b8e0a042cf840fba47c06e9ae992916edd28d7045f1b",
    "signer": "0x4053bBB0fad68042Bad576847E59196caf756dfa",
    "userId": "931632719"
  }
}