{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfbda55dc317c9d5273d5d99f2aadaa6e27054a9335e0a6b2f2fb13fda9a18b3c",
    "signature": "0x418ec0ce64e786cd26137b279c259b46a459f4ddff05e1cdf241c539b9b2b9bd59fda9abad395abd17a415ef139659a381a66f289f6e0c7d7ab8091b824a00b81c",
    "signer": "0x8F0A92DeC17965f2F4be5BbC95977df55a54C5e4",
    "userId": "758914940"
  }
}