{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254245",
    "entityType": "User",
    "nonce": "0x0175fbdc1957fe54db822477053a89d53286fe9d000fc562fae00ea8867050f6",
    "signature": "0x3f82e71846155dbedae496352a6f73f33bbe122d6a77cacdda20d6301ff0d832677f2e8c7ef801c540903b07e550bff3457a623a29fb561715c369a24dc11e3f1b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}