{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xad5a33bfe2d3d28985e2708e095091142ad74fdb287c47f98bc9d21c41f37e44",
    "signature": "0x4006c732f629280f64e102290fb5d296ed3284885378463f4f907dac1036413a536e511db1e65dde9c5cb2710b6997d4733daab8f464fbf03b161909beb852951c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}