{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874488069",
    "entityType": "User",
    "nonce": "0x8df14e338e2c48c009c6cf7c6c5f177e38c85ddc5dc195536749b418e2bc08d5",
    "signature": "0x1abea38bc45320f67f0589ed0eae7bfae5f8525ef0e6425cdb7ba3fca5045cfe5e68d6ef84571b9d18a56992473953bde40663349bd90d390e387927d1a87c731b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}