{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135771",
    "entityType": "User",
    "nonce": "0x7c6898fde720f7ee1f169a82ed9e32863c1fe95c8f773c304f5b608121b273e5",
    "signature": "0x343251446270495465f7c4b186f8c7b872918613069d6ec4d5e94b2bf18b4a025ee15037172e79865f9685b275b2e906726ee00d31cc06da08e5bc2a20626b7c1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}