{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x916a576ba112e55211ffe516c5cbb154cbed2d374bfc8250542b0750b044dcd8",
    "signature": "0xd2d6ed02b0ff4e04b43056687de431e2b9cbc3aa7d4933d3b2a10415f10508156389555760f79505f1daceed3df7928b03b331570caed7a7bae468d8c0dccd981c",
    "signer": "0x8133D4Ea8b0296682544599637fe69F0E6B4126C",
    "userId": "76059272"
  }
}