{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646940",
    "entityType": "User",
    "nonce": "0x9edfc46f1512033f1f86e0bcaeb4482dd25e20acad18f09f71ac8c051a8348db",
    "signature": "0x9f0e860b39dbb8a5b85947353010f03dbafcf481f30356f025f0bf51a83f85f41e66c88b877087f8de78a6cf342ea011356169f25047e829373aa67bdc13f3821c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}