{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x6adc0afaf34693e74f51f9747814ec5f87af47e7a97d50754e5c1371a37b0661",
    "signature": "0x5c4ea6c9d0037d0290cb7f05a58a3bb2611928d89500ec729117063af5b8f2723dfc5aeeae367d311e3b78c928ccc74b524f9bab144a35323b9bae0f365dff811c",
    "signer": "0xaB90b80e01A874dbd9B356083A2a389999dB06F8",
    "userId": "883066600"
  }
}