{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4314",
    "entityType": "User",
    "nonce": "0x29b535430f89dbd6f5a7cf471aab4c0052fc3dfc39bf72181139ce1d55e36082",
    "signature": "0x80f880f46ffcd1a7a3c76881aae7312ac6fb37db95386344e3b82ae22cb8fd014f9548d0ee2c3c3bd89fe4bc87439375bc713088f1b88057d76d63b5e9e4b0ec1b",
    "signer": "0x4cFd9635b74edd6514FBb781B9C920be24A36AfA",
    "userId": "376830101"
  }
}