{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd921d8be935b42e0e3d7ef3ec055418edf5c3cbb2aa8d360d8d81f3a643576c3",
    "signature": "0x3d707adcceb20740d22a8abdcaea9589741386c2d6debeb2e141e197e0e1a4647d6c10d34dd64f368478091a953dde76818baa0c019c816cc0928207675b9d801c",
    "signer": "0xcF7914DDcCE68CF4598171b6528D5CC34ee897b2",
    "userId": "890962937"
  }
}