{
  "manageEntity": {
    "action": "Update",
    "entityId": "467398673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6d8cc570c6603b16345f7dc34e56b595bd049f3eebc8cc56a953dbf3dde2384b",
    "signature": "0x091c191e2ad37c8637728b057ca2e7d8f2ee3549a484d8c33113107d5f1548091da27a3533c5ba2d022e07580893aea80470ef3758abb66a8e3aa14a556302d71b",
    "signer": "0x46CfB51Fda6B1829B8aF13F7d99133767B3F3b17",
    "userId": "467398673"
  }
}