{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "515388277",
    "entityType": "User",
    "nonce": "0xb6fc92a961b59061274a0d64802e1104e5bd0768715d27525df9d02edfe47036",
    "signature": "0xa2447a84bb10a3dae58eac2e34f07c70f2c69c0f919d78045e80cd3922a8f1b57f4ea2276c4691bc62bed5d857a396de49df24b3a3af92d79f0cda9e9ec774141b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}