{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x916affe41c758c398cfaf7d7c22b6d9044f68a363ce8a105506943adaa9bd266",
    "signature": "0x82956f234eab1e5b2afa341f1501c2d4af3fd04e6b6a1189f75c32a6fd27b1f130a4b9fd2a4565cb5a1c826333eacd2b85ec28770344bc7ad18734dd887e428c1c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}