{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391521",
    "entityType": "User",
    "nonce": "0x35c5cd11a3468c345c041c77a4acac20742ed6b21b86dd50ff9f8dcf9161f55e",
    "signature": "0xe9a7384bba9bacc8fe2c2f5b7681f1e9cb3dd750d0a377bf9f15010ddbce05e22ceaa8e151411b93638d09db174956cc2ee051af363d05668c4441cab5f697f11b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}