{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322809",
    "entityType": "User",
    "nonce": "0xb5bc7fc16c848c788959f8e5c9da0fa7d753d1e900f5c20f463b66d6b44ef623",
    "signature": "0x32da43f17beaf5460115cbd1beeecfbef216a0b5c4a94f8ff870de7b5216e7bd3f590ecce72466bb6a172d962399259bfdc1814c82d33da4bb9d9503f7aa9e711c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}