{
  "manageEntity": {
    "action": "Update",
    "entityId": "101750920",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x16cd3e5501108c7d53563622a7d6425cddcce722dc19d1695b7ffcfedc5c7ea6",
    "signature": "0x5be36feb80d6d074e1477fb232e8d1fada7d4df84a15ab4616be1a0afbff00bf24e54314772deedf5f2787ae3fad2bb27440840722a3f7bf321e8ec692f7ad2e1b",
    "signer": "0xbF4b0f08cE2d464Eb74055fd0f160BfAF96E2787",
    "userId": "101750920"
  }
}