{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x75c8c09a4401956d76374357b786413c582b5ae8ab9f6552fcea25800e02133a",
    "signature": "0x936df694655c8e63409bafb64ed38d65115775bbf1a97f89e6e822b11fcc3a5d34a7fa7e50942a4cc11f81ea2d26ebfb7cf5facd432405d5afbe4de732131e491b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}