{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "642319857",
    "entityType": "User",
    "nonce": "0x79d9d98b6c7eb160a417c854a80ac600916bd86df8a1faf73ca8c30193c44f75",
    "signature": "0x25846e039d567c63101e3ba5124d656f3fd4612f8a7cf385115449b85b7a5e390a892de7c825adb531c48d66f37e945f1bf3b1eb23d4d25768223034c5ea8f041c",
    "signer": "0xE056Cc66880683A29B77CF9a0948DB5404aC9891",
    "userId": "743180230"
  }
}