{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994775306",
    "entityType": "User",
    "nonce": "0x9a37dc1d6cc55ef9fb065272321ab617d268ed3e7343ba7f92872da611d42a72",
    "signature": "0xd72e8c65c5efdf89c4cdfe96285d2380b211b099dce1bc09f8538239d9b2a9934fd2ab8bdc056298b143bf97a6121d0b333bf60503fcac827dd1ea7e9c32673f1c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}