{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "479661043",
    "entityType": "User",
    "nonce": "0xdd1b5a6af49b26fb1657fd0015cd099ba663154072389b08c8c3618cb817794f",
    "signature": "0x8efaedbae34ef209eb37cb787821f8a45b474cea985d0d7833d96e9560f909fd627da0046ffbd11f8d0b7182ed5f4650ff7902b3742c5c8ef9d50195d0e1ec761b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}