{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283492",
    "entityType": "User",
    "nonce": "0x9a477160b0606727b62010ce94a5731ed6daaf207bef76a4deae9ef4956cb667",
    "signature": "0x7be56781e2f65c9eb3be2099e9224dcd9ff142ef15f3fcd40724bcbc49c1f864022b288c9d91cee1ed4772ff2a6cea580f1cdc6718548a319811e70d6f2215e01c",
    "signer": "0x7212FC9b44b2BB370D62E8b98dA3f7D74c307696",
    "userId": "324170795"
  }
}