{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x62548ac37388a7c546f5ad75cae055844a323adf4d8753c24f8f6b9511cbbb57",
    "signature": "0xfc44d65286cc55017dc429bf391cfb02b249937c06263a11b281345a71d423b7527b3de7ccdf0b0ebef76e0c505dee87f50aa28101846b8f56fa09f12f6de8bc1c",
    "signer": "0xcb797C58827354F4a6e8e3C4d77c3A7b286Fe542",
    "userId": "447942593"
  }
}