{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0xdf1096ea4a3c0f1d85a171f30e2ecf8438560c70ae1594a02630ca27e35e40f3",
    "signature": "0xfe88668ae727e25fbaf38b22ca6e75df6872ec6b7671878543caf86ee56713c76a3cf4a01c97dfd5656132e0b4d68fb6dfb30a25f4d3e4cd38f1f10812ee62571c",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}