{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xc83af36f307ec5ee7faea9b1f6807555dfcbb10b0ba74011905b1a9871325ce0",
    "signature": "0x893fc22925514674430d75a00ecdc671fd741f475f47f8d0d27560718fc1ae2e53915dc5273d1ddb8d4ecf69c3a3a7c5b7eb90d5f31fbf94bea6f05fb0d5b2b21c",
    "signer": "0xe3eBe6938038F6A1206D08516A39d7867DD26F5E",
    "userId": "967041374"
  }
}