{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348321",
    "entityType": "User",
    "nonce": "0xe88f5db386008bf9fec214058dad93df1e5225bd017aeb2b5286bff10dbb528f",
    "signature": "0xc908e86b3e96afa6cc34e8835f76d432230f68872fbad77df9a3ae11d4877c4361a8ea868ef443add81f18e8bb37eb60ffacedd1ed4b0dfaade753e22f38a33c1b",
    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}