{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56798",
    "entityType": "User",
    "nonce": "0x7ba82bdfe4f76311f49524d89a99e10ed706ff9f5c033cf02ac441dbf56981dc",
    "signature": "0x9600fa7dfd4c51fa1cfe0d63f4303cf09c0e5999c83f449aade0f40fdb402d8407ea0bbd901a25d23d6b325c5b4c580c0272fb258bfd476ea8f04d60164eb9d61b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}