{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12894",
    "entityType": "User",
    "nonce": "0xd4a6b75ef558bd9a60beb10e273db3ee758fa75e217f754270b67449ed53a219",
    "signature": "0xf68ba6a0617dfdab88d1660e20d2420480ad5462e8cfa77a1c2e04c84376839d1d57f62ea63d5a7d734104eea010975cbb6ce8751c61bcc36a1344e246395ccc1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}