{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294101562",
    "entityType": "User",
    "nonce": "0xecf270f81aa3245f36eb97602a58f581ba666a6722cca3a2180664acd3a9d4b1",
    "signature": "0x6f313e4a7059f4c45db277fcc9f5096b3d450c606a03f0677da0a87392307f902049d857f9b2b4404e8a5c57db1dccfcf7cd1bbe149cbea06ccdd7eefefd6f581c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}