{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x83cb5db27bbd5acf48bf424f756cba1d35b1e4dbb0f9e2124fd4342983697720",
    "signature": "0x76e8b95b0829533053d219e2d1daa7978de97bb9d1d6ae6535fbe634d12e89bc7d08a217870fe65601edbe125bb6181ca4f6c04f493cecdad92d742b20a7b3a31b",
    "signer": "0xE8D6E5670A532CCA8099b7a222615B795D7E17CD",
    "userId": "617481694"
  }
}