{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146811",
    "entityType": "User",
    "nonce": "0xd99d640679e6f3ca16d7b5bf2c8933c598b259b783076c6967663a2e4d3cbf16",
    "signature": "0xa9efdf65a58b8670766c11fe428e095d42182d6f0524eb03c3facf4c94ae6d6a0a4a8f5167b4b4022be8fa42124227f91ffeaebbb6e41789ce2283d7ddb7e39c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}