{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1387255",
    "entityType": "User",
    "nonce": "0x385f93fb6bae89336d650999e880a30a07769f265e2f9f0a0639cabd9f8339a7",
    "signature": "0x0c6bf183c403d6d49cd03513c6739993ed6b25d6ee97baeb8442eedbb27ed2844920087a4ef6d787bf5c8e6e949dcc9c7a02f6124597cd4bcc4566c1f76f33b71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}