{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387153",
    "entityType": "User",
    "nonce": "0x08cefa01239dd488d4b916a572c8b4905723be79b22d1051991088f13ce176d8",
    "signature": "0xb376fc3fbe1653f2eb4cc60d7ab1a5b061201276cf0101d70b22282824e30b6901570e3b9b7f919803f5a1031256dc342a42b3b74b2d20b4d515ae48a91e0e2c1b",
    "signer": "0xB8bF557DC997cD9e10AF5CcDddf0D851f201Cd90",
    "userId": "806523887"
  }
}