{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "734150025",
    "entityType": "User",
    "nonce": "0x0dc1cb0603cdb306a8175cdeffed9dc1bc7175cd1b1eb011c4b4727c20c74431",
    "signature": "0xc115ac216cd16febb6f8de9efcd08a483a35e37c947155477f68b460fbbab674215e7b8c20d4adec1fada2438d07f07d4f6eae7b83c3a0c9114bc2f43fde485f1c",
    "signer": "0x2578e08e63e9240DedbEB392Be8356ddDBA5Ebea",
    "userId": "782603281"
  }
}