{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856473940",
    "entityType": "User",
    "nonce": "0xa5e7bb8fe39445208cfd06baa419e177fddb5ad5b96894fa68bb6c03979d2c2f",
    "signature": "0x84515f9a41ff01800cadc9673325760a1b15a83878b06350950b692d954038975044a8608b1845089d642839ce17dd06ac6d56dcdeba88aabef522ab380b029e1b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}