{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189016",
    "entityType": "User",
    "nonce": "0xb9dfb9c682354388fac98b13bdbc24b3b9796a46c1b16e16eb49b21e97bc7c48",
    "signature": "0x793cef872c547a9f43a6411402b5ec2a1dbf6652af53edd9868e1e03c6a739815f0dd94f49b5aa5fb6734f5561acd6298ec8595cf7430764ba65a00ebe947be41c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}