{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0b53d921d1cca99546c3c4729957bc176e68b6d971d166dfc9b80afdcd32b73",
    "signature": "0xeec6a6694a6eec4dca536b37d29b1f59ca68c4d63b53ecb7b150e412de7167ae0ec02a92213f0d177af1f52c8a51ba8f73f59ccb4712a66a7a2cb2e41c1f500c1c",
    "signer": "0x3a15267Aef121Df06ab1920d9f4089762a1450c4",
    "userId": "93259889"
  }
}