{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x0d0117c938a050880007da15636fb1896eee8bb0a1f39024ba91fd7e875e094f",
    "signature": "0xa63a6c452d4487a4cfd0984fa2a6e57a44dbf58d025c224526a8702f935d157a4fe86f28f67e2afad3ac606311825c4a8910b532dd6ca47728ca43e00a12ae961c",
    "signer": "0x515a3648a035Eb9Cec60Cf6F10D7d45D40f415fb",
    "userId": "70052370"
  }
}