{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xaacc793852ae713b2417770a0906400b43e684d10d3cd7007c03c16f47185930",
    "signature": "0x316bc99e2118dd06cb45ec2e0a8788d1cb8f49483b23a9e33f0d3c79909b411e2712a2d26036f46b24b83724fd45593593fdf1c4864da6823ac20f10e4d2bced1b",
    "signer": "0x538B53545E1fb97bC3766E4851D655E9Dd5B6101",
    "userId": "114736985"
  }
}