{
  "manageEntity": {
    "action": "Update",
    "entityId": "330913332",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xddfc426d5dab4ef8eefd76b05e123108c5b4f77ce2960c01838578b1c8a8c056",
    "signature": "0xbe2e9f7278016324c28865f9027c238631922ea8d66706f678392735554e39e40959056ecad856c0a0b93f51fa17d6e5e0a4171ed01d17009bf0ef092d760c9b1b",
    "signer": "0x4cC4772F137BeAC749Ff7491b50b11478bB53fa4",
    "userId": "330913332"
  }
}