{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55234",
    "entityType": "User",
    "nonce": "0x4ecf4f173c4f33ccec1bfdd778a67cf623e8dd1c08c0463e480c664eb09e6327",
    "signature": "0xc01813d3442e3a83fe615b44d9eaec1c28a0b4ad899c59ecb9bdc69b07954d7f1303226a88b2ba989b4598b51cc96fcfb06c566bb652adb564cd7527472096481b",
    "signer": "0xb8909c41963586dbBe3EbbAB4FC8F1f8E6970Ce2",
    "userId": "435332232"
  }
}