{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213759",
    "entityType": "User",
    "nonce": "0xf96d849933cd33c5ef445e84055ee450781e4df26743b0ef8ce38112a2d46c98",
    "signature": "0x584512c5ec2ebd3c50afe795f20e73712eec8b0a195d4925d3108cc75dd256742e98c228ac80c27163e945b6d47f4063f4970a5bb952f3ffe0f9e3c6d089b05e1b",
    "signer": "0xfEf71DA96b2A873D3fFA10091881F607a11Fadcc",
    "userId": "94805"
  }
}