{
  "manageEntity": {
    "action": "Update",
    "entityId": "955890559",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x08a251675325d53105839bfea9b44203ff6fd3873aa04a8dec08439ab8e8986d",
    "signature": "0xa81bd6204769e22b6d7f520c91e33b14fba212937ecd6923393be0b76894021253c8734167f5b6b6e5b7fda3e24255124668b05c99c996bf8222ee90a42d54781b",
    "signer": "0x650114c06c1D3F8E6690f928A554F790FD7886D5",
    "userId": "955890559"
  }
}