{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814483459",
    "entityType": "User",
    "nonce": "0xcf33584c555943cec2aacfcf6e9be20886ab6a2d6509a87bc92a043c307e212c",
    "signature": "0x02b2ed53570e0810a4ad2e8093046099ece613b4a6d71732936ee8f450f32951384fca2521b4f17f6ca5524da2bff77820a9b6ac1900674fd50f199f5f8dc4271c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}