{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67615010",
    "entityType": "User",
    "nonce": "0xb359492d386c62e0c683c48071741d5503cbfe234289c9e0c6854e5068f8f875",
    "signature": "0x2ca3c6cc951a014f55035fc74c71fed7ed3f4ed1663b6031414ce67021613c256b876ac9b0c2c6a4998ae09dfa1936ea99ca8817700818991ac9e743f7caaab11c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}