{
  "manageEntity": {
    "action": "Update",
    "entityId": "978436753",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd9634d5a1553a45d7438cef5399c1fc425477b2ce854e2d90668ae82824df0d",
    "signature": "0xf95bb6f27c17a97295548f660a886457481a85b579fb870befad340ede6ecf0e55ac4886a65136d876267489cc8f8b6abc6c5c65f917e2c28960081275a6c3f91b",
    "signer": "0xe1d49CDcC737a518797dFd4D669EbaAdcED5fe6e",
    "userId": "978436753"
  }
}