{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319106",
    "entityType": "User",
    "nonce": "0xb7f8f8440f24b01809b794d6ecb60fa2d02251c26a69982444d3201dfab97d78",
    "signature": "0x4b658ad851cdbf2a1d454e334e66024e1191c7dc25de00f6ee3e59596074e47d4d0f8132e3346030cd74ff8bd03be83211db923a7f1c07309817ac9ec6f82cec1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}