{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53389",
    "entityType": "User",
    "nonce": "0x660261dcd075070d36cbd063f9ede7ca4a3079f365b3d22d6ec28aa0687eae57",
    "signature": "0x132fd3ca5497fb212b1158510078a542abe490499cb10e06d8581dcd019543ac1bbcd4b736a173f4de883c1dfe6496e9c21bf78219bd1906725b8df6027e46d01c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}