{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc71d254d0fadebbd2890d72845155d915dc40a0c4d7d69e15a80f9b2f490d270",
    "signature": "0xaa96261554820ecbe4dafd8072d59a3f3fc82567f3d9c638d5e48394f462a4d9486e64c885c16df5acfafaef290120c113cdaa262ad8775b5023b8f6b6496afe1c",
    "signer": "0x980AeeD86E76ae7266337DdBE6f3d8C84d4d3f2D",
    "userId": "897527045"
  }
}