{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "491028850",
    "entityType": "User",
    "nonce": "0x59b408e1e0960fb8b0e6fd566fdc3e9a0ca4604be47f6e0bd8ea4800b530722e",
    "signature": "0x97f6a1d9e9838d5ce6f9a22e413fa5bb633fb737b1b1baea6f4f84a56472acb621c44a45f5eeae0f93705e8e1012a42ec2ddd46b46a21100be11c232a045ae7e1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}