{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa99b3adea500583c616babd3334e3ebcba3b6c2a94368a3286a32e83d138802a",
    "signature": "0x10682e85e1bd0b3e26d587298821072ec3afce03edadfe2c584e5bfec367b7172f3b11c20cbb473cef4d5a2a7d58fd85e9ad41a5c55e88adbfb10ec309406f791b",
    "signer": "0x426Be6Ee4cbb9639A59d4f2d8fc65EEF2F539478",
    "userId": "663259967"
  }
}