{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168498246",
    "entityType": "User",
    "nonce": "0x646590e917c3ce65ed47e4a7f196f1101d4c88809c730f6073693355d9f8a181",
    "signature": "0x4dec01207f1e8936e7f36dab9775c4856c1b4c4db93fd836473c6c82f717c5265a11696979ba5f5b45b2e76d94bf91a3d7b20c4f21b8242297c8376e41c98d171c",
    "signer": "0xb1706D753BBf0bEd5084443ce266B6E8105167BE",
    "userId": "670186204"
  }
}