Blockchain

1. Users and runtimes should be able to create a new entity

2. A possibility to remove entities should be provided (Configurable)

3. Origin of extrinsics are DID origins

4. Admins should be able to:

   1. Assign/revoke read privileges

   2. Assign/revoke write privileges

5. Managers should be able to:

   1. Assign/revoke manager privileges

   2. Assign/revoke admin privileges

6. One Account can hold any combination of the privileges

7. Messages are associated to the entity

8. Contributors should be able to write into a bucket