{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219358",
    "entityType": "User",
    "nonce": "0x908ba8723c65959d13c2385089bf0ac38462acdde2756f9a8511d33ee77aac59",
    "signature": "0x47ceb81938a0f6c9dc26acde5e63607a9d9aa4224572bfb5f163fdeb6b35cd0b21ae5179ce48fabbeddd4014ad1115a76628d4f62e17802ccc0d9fae716439541b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}