{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x162a4f1daf964e1eee653270fde3decf416c07a4eeb065ec8d8bb0dbbfa1e793",
    "signature": "0x90743418b3f5314cf68ecad262d5932453787bc6de09e201f729785cb7db8a021f6720af503f990e87000a8f814c6a8db51a9df1fe8d5410cae4db5c28eaf4e21b",
    "signer": "0xab2Ae5C2eAa3d8D19bA49bD0E1AFbd3Cfc25BEc1",
    "userId": "671611799"
  }
}