{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55975",
    "entityType": "User",
    "nonce": "0xf12f4bc71ed61f3c428f31ae7ad619a1ffc2b09cfeaf3c6fe9d43f6fd6b5947d",
    "signature": "0x8a5763f50c7dcdcc6fae9053997583b587f2ac1359646cb02d9c1e1f8414dce35023998921dbed89f5eeb0e53cb6017c70992cab9c7eab6df0568367183e6e351c",
    "signer": "0x205AB12f2C6e727fb65885B2A70E722f58C79a8F",
    "userId": "333383841"
  }
}