{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42809",
    "entityType": "User",
    "nonce": "0x223d68da9015cdb0d7aa2a0f4c2ebaf1303ec970b525c4339f76c07559a4eedf",
    "signature": "0x0015c482361af19492cb44a0dde59163a877c688581d2aba4912d00d75f240480a4b4d2ec583887fabd296b6369ef10e4576618ae8cad6409f5ff9bdf972f19f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}