{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256999102",
    "entityType": "User",
    "nonce": "0x784d220973a5e798e4cd6c1b429a3633d70f4750b0db9a9f0a04919cd8d6fc8e",
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    "signer": "0xb06dC1e7E1f54ad5b7DD0E6b22A38e138B319Aa0",
    "userId": "926627361"
  }
}