{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "757829",
    "entityType": "User",
    "nonce": "0xe63295054b3caa339c335ffde4e6c2757ddba68f86cad18e091275ad6b388513",
    "signature": "0x4e2752b41e1e3e7a1499ea84b1dfa3bbd2b2f8d077f8d5f843ef6c0f262d87e9057104771d2b6eaf4ff5f663c28d6e69290ed8fbd7baf281d122ff50d263e0c21c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}