{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x0960f61e19c1c5a22c11a928daeabf3a2230fb78b3e254308595667a458a38ed",
    "signature": "0x3cf1e8280d6986f6c1b057308835ee9a055e501b1b8598133be7d6f813ee2e6706ce72dca04e43cd081add668fbe1a966c56efc1693a69ad33b7b7cc20fc68dc1b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}