{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x79e8af6ce5685ac22792336d80236bb80375864d78431bfbaf33bbc0c6e5aad1",
    "signature": "0xca3e1d4646f9d5b2bec1e5e12d1aa57db5c6c1a10eb2147677f43f43099f56043b659e5381cd479823d622eea815092bd183813de709462fab0fcc6fd03d1b031c",
    "signer": "0xb7064d95A38c94e9883e3D32d96E879E8fd4272e",
    "userId": "151924512"
  }
}