{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240171275",
    "entityType": "User",
    "nonce": "0x6442efd44365b4c5f7798ef615f4ad309e5fc2f2e104e5fa7636bb2cc81cc54d",
    "signature": "0xe6ff53987245e02c2e78b81b7ac7a215012952a3eefb8196c8eeb748b2ba80f30070f0bb785e74d4bd7da156d40507dd8bb160445b5e1541432b49a9f0ccfedc1c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}