{
  "manageEntity": {
    "action": "Update",
    "entityId": "218163339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6afd5a18d2d4e30fbbc27b415ea8fc037bb86a31c130be2fab6875d8962b0523",
    "signature": "0x9acf435b6f3d888f49cf132fc7cc3d1196d1cb1c7a8add04b67472ee97c4af6c53ee0dcd0e75739dace49407cb155a709c6309382047e62430ff34049b2710171c",
    "signer": "0x734171922010Bbee19d4cD99975eB2fe71BDd9E4",
    "userId": "218163339"
  }
}