{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa858a528660472127ad352a04750e6db6e8fca642f97b2657e2d70cba7fd987d",
    "signature": "0xd5be747285f2de3c2b3d6fbaafe7f3fe5e40f8c993b16039057495f76c50da203177ab80d99f58c56faeffb35f1b1ec2b0ecfa74bb79f4777f21c234fa5b880c1c",
    "signer": "0x46a5bb33460d8225491E7a9b7439fbDd88b55D46",
    "userId": "654054486"
  }
}