{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83c50c01269870e401a32f3a989dd99bb9ed6676974f780bc5d795d3f6fe74d5",
    "signature": "0x21d60109c8e28abe0c0eefb0478809c4063954991cd9b8660e8fc3c0f4ad87b548736eb406bc36982d4f33fcf0f31fa992dc7aea1c6d21925287c991f72465ee1b",
    "signer": "0x801cFd101977829e8D371a77d53FB980b2BA75f4",
    "userId": "611862968"
  }
}