{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9452869f0df7f97a57e5ef8cef14393e200a7c0b859cc83afecaf858475d7561",
    "signature": "0xc79ca96c68fd070bf91ce13fa868b43e927796d3cff147392c4d88c880ea1794125a73a219463da77d9aeb317c36d77dc3ce54c9ed53fbc3562bf2687240944a1b",
    "signer": "0xd6406649C9B01C4db835735dEeE9F00Dd5F30348",
    "userId": "849199826"
  }
}