{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x55cc1203c30030fe9e3d388e487c91804019c0b5eb3cce78be4e368022a88e6b",
    "signature": "0xec5c98e4604c5bc7fb493dd4231e3357a7bb5f878f0c618494ac6b3a5c8a10392672ee8345b4026e855e60d8ce327881afb1747d1beb8c968cb6ea0145ad50d31c",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}