{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14171",
    "entityType": "User",
    "nonce": "0x4f6163edfc6f4dd6a94d44bfbe79b6ed503107f0dc69f0ef5cad93f05887a089",
    "signature": "0x6aade45efc25301e2a2416e9c5cd7ed29341ff9eaa809372ebb266c30f83a76726733ec9a5fec58b4b04d842a9779da1b74a543d14c8be22cc1338c72f97c9d41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}