{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0x0cad784490efc7400b47b53e904eba725e984e54a7fc251548846587bee6b85e",
    "signature": "0x1b03dc3b9757a2d5988c2cc49280d625c80a4fd4a620f701ca898b6903201dc6713fee53b339ba979de21bd5f8ed7ad28a2a5f161822d993e9a1397c805157ce1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}