{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0xda8dc5db4a18d59223e198471eaf57beb5860f0953ee32129e289c9c9cb0b99f",
    "signature": "0x52f49403b508451cc34646c52f08bc934d131cc2bc6cc01c064c8bac5f8d583901f092cfd5551e9e549adddd920706e6c7a9c0ec22ea731cd631a6a2530c3a461b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}