{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617316117",
    "entityType": "User",
    "nonce": "0x9d42469021f62f48295f66c06de3b7d6dfc2c1edf4e44041d7ceadd45e9d4697",
    "signature": "0x8737b9f1622f4bedf88b9924ec64d9b68d02a463352817ce8d232494e91df1df3a90ca3fdae450ec10334b677b80711c20d9475bdd23fc7ed4c4ecf1bfd041c41c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}