{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16411799",
    "entityType": "User",
    "nonce": "0x8a13b8db493d0e4ab04b69c14cf80280c3fc9b94ce503f5924b01efcb1664bcd",
    "signature": "0x3f25d34298ddc81ebf3f04a169ba725124dda5f18babb8ca388e4664298f6a4d7f9e23c0ef4cc3dbf927102f7edb018da95188c153f5b06dfe169f29cd1443291c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}