{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04dfa182931fa98fc0a3eb81284aada6efca982da34361c02e973733ff795e63",
    "signature": "0xdc5bbbc5677339701f880e6734639f32ecd73a2eb1c4878ac16018386fc87a1963d648634c46538e6782bf44655aa0dff52fd772c518df041f9eea65109241d31c",
    "signer": "0x2C20ef89f36A703778F09b128Bc91B64D32608e2",
    "userId": "171901978"
  }
}