{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0xfe975cf8d1c50d55a28ab37576f04e150b3bdd2514ad76bdae0ff89fd430dab5",
    "signature": "0x0428c86d85f47e7898b9d2cd33746c211e70a0ceaa290d48f19c94b98af0b49a5462145a4a92c64a28f2a1f31d3fcddb61639a2f5248c6f3d642987bd4811f351b",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}