{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x5ee56b4fff19e9989b2e45fd97dee2c0a125ec5916a66fc6827f763e82ef526c",
    "signature": "0xe043ee78cf1933fafaa24e2165527c55a18e4178f53d05a79bff567bb3b4295e4292eb1044cfeb8129fa2e3b1ef50bd9fc15d6ce34d9e0f6f312269a31e906321c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}