{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xc85d5f06209b184f0a5d55258c327bdf4b6fa47fd0faeb22c3fd338000c7799c",
    "signature": "0x9fa36823a46114fb727f1b2fd1cac03d1a904e45588c86773e6df599b63fc8bb053a42f65a6c6d8ab4bfb95d0bff9733538d58f937568fadf528d4d080bd587d1c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}