{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17767",
    "entityType": "User",
    "nonce": "0xa9bc03cc9bb3b1bfc866c830c55cc3b297db673c9720f33f7eac1217184207e8",
    "signature": "0xf835cd4bae095d7031e470fb01e85c4e03f9e92a8d08d47f477fd4979b2aca1c2ec22619fb4748314800581a49534dd3a5e1e8bfd4cfbedbf3a07b4526a289c51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}