{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254245",
    "entityType": "User",
    "nonce": "0xac84dd65ed3dac0eff0bf4b7b200cabe505ca325bccba7f4710cf1daa5076fae",
    "signature": "0xbc219f5dfcdb6315caf08f7ca1a674e22a102cbce6fdbdc97cdf0bc28c8c4f0c0291dda523da0c5df282adadfd0589a16be0b4e30ebb73b8b9fae06d219cc8cb1c",
    "signer": "0xD734eD686DDfe4915b10db6aadC4EaF015A7F594",
    "userId": "432395000"
  }
}