{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18959",
    "entityType": "User",
    "nonce": "0xf9c88ca862bf5935c4bf8b66ab7f896143e39bdd089cc7d725798bb04fc60a6a",
    "signature": "0x3069e64c4b0c6be762986252ced4e6b779e74adcb222322752a05a8c322f51bb41e56e0e05bd458c62be4e83b2cd99a5971ff35f3b4d4ee82196546a7a7c9b2f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}