{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2655",
    "entityType": "User",
    "nonce": "0xe50ffbf25aa38bdfe585a4a472a8feda3a63ccab81b612424f07de07e29365f8",
    "signature": "0x946949eabcaa1c16485a6aada24583f71b4ef7f6071074964a57cfd3556ab52e64affc39add8f2ac686bcd580e0047989fa8f008235678d8a043258ab93db0141b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}