{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd7e40e609992c5e5477a1e17ba8826b976ee60433a162c9ad412d517e6ccbc8",
    "signature": "0x9bf2cb7f2f810543ef24980863081fda8a057c6b3e62af6589301f2e9bae5f3e3e2c512e04dfb23f54de47fac0cc3804b0c8dc81ff28e1f8f3a1c5c42e0939d51b",
    "signer": "0x2629976b43CB7e21388990853A697F9a0c1f8cC9",
    "userId": "933511707"
  }
}