{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7f682f85153cf8fb40377481caacf52ea3392a1d82602fdeae4dcb2c829f76a",
    "signature": "0x6b22d2d6ed813358c02ba0dee33fdb1aa1c45ad0da56f233841481fdb43d198b5e0698a381fe703928b97be72709c7d3326002aac79695766b4e663f62cc11781b",
    "signer": "0x6cb4dEC01e7F8d793cD7211636D44160c9eC208e",
    "userId": "478850315"
  }
}