{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147909",
    "entityType": "User",
    "nonce": "0xd496cfd9dfafe79ed0205090c355659ba2d6b2dde44758510b08fbad1123c2d2",
    "signature": "0x562fddd935108feb40cd282fc7b2f44994b36666ee49f5694b8d5d498876dfad505579ac723e940bab3572728eacfbac6c2d8de0aa4ad4413b02f1ffb275345c1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}