{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332",
    "entityType": "User",
    "nonce": "0x3b9e5ce6fd281296d1154abf032186dc7cf5a9d2002c6deaa82725809fe28644",
    "signature": "0x8b3e1d2e377e9c297fc6b56b59c013c20a4327bdf1f5759d9f7a58658a21ab0f639922c3ab1bc6b9e8c679ceb8fbe9af6e16e63c2adbfbb80a5e26ff968a39071c",
    "signer": "0xca179e2504013f012d6b9328fAa6eF6Df54FE38E",
    "userId": "384424370"
  }
}