{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b325834b5865641e48d70e82aa81296c5c058d2d9a863ef5a8447a8ad4fadaa",
    "signature": "0x913d989929eecd5e098e9b1a9e21be2effefea23d7a0ee1b562a5e49bcc0c0e55333f8b7d39b1e7a2698e25c549ab527ff171de039bbe5b34f7ec73f55ae26a11b",
    "signer": "0x5236D4A17c3e626543e337613025a70b5F26C797",
    "userId": "409581012"
  }
}