{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x01f155c98ffd2cca2db3a44399b15094375b7a5c4a77182adf2b3f4866b710a8",
    "signature": "0xfee7a77a6bee405a225ddb0d41f80e4935e18ddacd9e3fe83ee56b168006bcfa09f9e9549a4b327c7faf42a53c13a0a0445cad858333f8a11dccc04c8ecfc6a91b",
    "signer": "0x4aAea60f569dCcb07000e6BE00AdcC7F106eF3Df",
    "userId": "353528"
  }
}