{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13989",
    "entityType": "User",
    "nonce": "0xeaf05941bd83dcbb7311ec7915126b2ef953a65ae207509637252cbdda944cf0",
    "signature": "0x82ce6623a4a9ba1de073ca807647361c3e287c70dacd3683b4bec0c191c9ea7846f70fef37aa17a33fb17901b4f07c475a5fc3a63e23607cdd92ce8194153cb11c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}