{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103994",
    "entityType": "User",
    "nonce": "0x902be45be9eeba93a4d8ddfa2e9445c8d36d988b63aa7f1be5e1dd3112f17a2b",
    "signature": "0x03adc8a87c164602f391e315add723bcae22f9ddfaf061619e2a4d5d5b460f417a438a297f84a6a07d3d79b06fdb8a76e4d30d1e4037124d19e4d42de5e2f9571b",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}