{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134039",
    "entityType": "User",
    "nonce": "0x85b744a4e8cf6b8fcb4610fbeeaa9063c5d28ea52bc55f8df77e519f3eb95276",
    "signature": "0x9e935f0c8bb81cb4b70e2c36c20ebcdaf6df51a1a55c008de2d0e2fc1e476515001cbe94547f58f8b37d9c8fcbbfc01cce6279ec51b39fde66c9dfade7a658871b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}