{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54e06686e97af76e2efb1dcd567c6a534ae404b255223a1a3fb5b35fcd0d832b",
    "signature": "0x11846de9141f7b16223333bcd58138029f9ea1c7738b3b77c83b91575298980a488276bbc6c807a02dfe5f131d323d68cd8de726d8e0d96c3f57c7baf876dc421b",
    "signer": "0xA499e25CB9E3d271e0a032dcFF48C75EB001476b",
    "userId": "179264467"
  }
}