{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852967795",
    "entityType": "User",
    "nonce": "0x3d7273e2d5e56a44ccf1a69238c0d2bddb60f82c76e3ea545ce77a37102a91ba",
    "signature": "0x87600e8cf43241d69219eacc92ee5de6490ec3944ad57c6e3ef23f10871729d62a08678963afee32a8366713bf71fad5ee2bc0282b67af1ce76a29e6b0f433c91b",
    "signer": "0x7De9eAB8cc98835A8108B19d07Cf904dbdaF816a",
    "userId": "101353536"
  }
}