{
  "manageEntity": {
    "action": "Update",
    "entityId": "722423963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xab43723c971ecad56eb4c3ae65c00b9f9bca7278e84db88a63346b1d71a38ec4",
    "signature": "0xb8aa4e377c159824def105ffa41b2d14bbd0a1e4badd67b6e4ff55fad8889cf2380509919f71e43f46b0d480d0006c5e804306f1c7bd5c34e1896494e2fa227b1c",
    "signer": "0xC6B31Fb8dfcaC5630f010dD4fBaD97fdbE8F05eE",
    "userId": "722423963"
  }
}