{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161978",
    "entityType": "User",
    "nonce": "0xb08a1ce78ecc50eec269e5752517a011ed6a075c6746c18f5d039ab143035d65",
    "signature": "0x92b75e8ca8c68f6e7c01a45d32ffaa333dc8981ad77b91eb3407017cfd8555de6798b04477b86b30f4a37b808d4e54efd23f476a7892cd3bc95d055888f94ffa1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}