{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204207973",
    "entityType": "User",
    "nonce": "0xc6fd44fbf792bd3dac1abede8086e72e1bf8c8a1e90e8d6fe625d433d41a6398",
    "signature": "0x927fdb699690ab54622a862a1c2150f52226ecb4a5b7c5db92962f98f0d3b84f144a695965b41f0a11e710950eaf7974478a2b3f50ca93597705cefc208b59f21b",
    "signer": "0x78101c17Ff7a0b822f2a8AdF2dbE8FDe9B722aCF",
    "userId": "428437326"
  }
}