{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x398c6ee13afbcdd386ac966829739fb0a4c6e858fdd3accac3793da6c965f146",
    "signature": "0x994dea6dd8110f392038bf297c4ef84ba53073df6fe57545071d87f44dbc6d627bfdb7231c729da371c4df2fd6cff85a75179562e9161428d90f7c0af2f7ca581b",
    "signer": "0xf6bFff07BfBeEE34Fd2b8B3C36cD2A77B8697799",
    "userId": "353883286"
  }
}