{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x77767ba7934fe730b3346fc18ebe6e39aea474ee4da033d79049cd4c40075642",
    "signature": "0x9d693a014358e9273fb9ddbc526107911134ddd541587ecd4d9a762750df97964aa6d48412995f2521168aecaa5c36cae586aaea272242de47234865c654232f1c",
    "signer": "0x99349974a285BA4Da3FB67Dbec77e3f462a5E306",
    "userId": "214996084"
  }
}