{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171594868",
    "entityType": "User",
    "nonce": "0x3f6710d2eeaa4d2380bda5618053a32b0d0a67589d0f3d74c81f8965955203b1",
    "signature": "0x3f0da2add80679ec5cd3fed153b0cb1e3c0ab39d2b2fbd1d58c47183ffdb17c76ab3a89a5ac3cfb20f29ec3d4bda857b80422dbd67ab7289969dafed7efa44321b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}