{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828368024",
    "entityType": "User",
    "nonce": "0x585bc6b100975714aa72b53a610afc77308103b3e9d565ce5b3054236befb111",
    "signature": "0xe2879b52ae13cfb407ca5cd6e361df1dbfe8061a4c2dafd27d5288540bfcbb95687bd806cb333a8437960e75c2c1812d6c9218e5caa6879c3ec0ee54b6678b441b",
    "signer": "0x5501467AFaA7897fBBD65dE583c7E74577B92f74",
    "userId": "608591950"
  }
}