{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101990",
    "entityType": "User",
    "nonce": "0xa8ed8012e5f148b98cdd1bf448e4d1591ddca02f988b51c33873bf9a622ae6dc",
    "signature": "0xccce913ad84c438bc54b559bd136f7c48ce226835e4856adf4d0a0f3bc20167f2da12b733934338355ea06633e4c3233ddff7ae49726316ead630582af7dbb641c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}