{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368774",
    "entityType": "User",
    "nonce": "0xab1397b1f4d326bdd73154252b5adfc2c91b74bbe8d720734c65085c61064d61",
    "signature": "0x94823766e2ccf4c61790c36c1d3d2f87108a6315db8053ba89a3ca7ec6d3921f683c59fa28b2bb647e52024f4c21fc48363d9cb540c37eb220d2895e0bfe9a601b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}