{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0xf2fdfc2d6cdd76579c19cd7dc8ecee36fc12c3f0024876ed1c563a568c3f8f0c",
    "signature": "0x47685ba47aaba012c5b2d5e4fc92cda093836ed85bdfbe2492692a51b7b27fd93ce5cb6cb96b25f0f9c7a5f281aff4c2a2ed392795e0515e25da9d058bb3aeef1b",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}