{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358093753",
    "entityType": "User",
    "nonce": "0xf7b5e6ae8212cf02e05611e97aa7accee9136fcdad77bb56d2f091e12351b457",
    "signature": "0xaad0110d81ca7ba9fda8621a3bc34d724f3f2a1a3b388130174e170ed75899422d5ef069e9558e3d4c5525754e53d3a58dc8090c228da2bf6a73a00243bf07161b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}