{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x30c7c21212d55a5aa10ab9aabaaf23ce4b00a5259c032cb52f937a77944f9624",
    "signature": "0x9485f1f3ad581c6c82001c0c88e7f1e031e626e8330dc484ddbaf67ee73919bf21303b4568bbc65a395ab0be092e91f37d265e6567016957985a2c780fc7653f1b",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}