{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200945",
    "entityType": "User",
    "nonce": "0x9bdcbaa31e148e10e213435a0682558fb678ef88b6d375940bb1533ed5e06535",
    "signature": "0x5826f03569f83e101033a160535a5082ea069f64ff1668dafbee28b579bcd7b11cae507e2a1b66d7ed148d988116f52d419add39c386181967d588c8c33b49291b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}