{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "663979320",
    "entityType": "User",
    "nonce": "0x6c2cb26730161c106dd1f4ff4ac85ec1a824ad801bb8c958fd70bfe9816bf80b",
    "signature": "0x4415462cfbefb628ce20768f2f13929b9fcaeb210df85c37650fbfc0cc7cb884760e1f9120f2ecb3e8e39399ecfd4ee69fc70d2c8664864b7a29edf1567a50ab1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}