{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352202",
    "entityType": "User",
    "nonce": "0xacb99fbb84bb82abf76b1a1db90318817c6d529510f23f05b88575bf78a057fd",
    "signature": "0xbb62dbc544b5c07a4f49608610ca45e1e4d486badd04f193d3e3763a75d31a21711ec7546d5b41c32fce437ac9f4a6bfe23e7b23a5b717ed2a680bafa02468ff1b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}