{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf0d9460d7572ce36c205a1e4aacb2d0b4739f0ad4a0584f2cd3253ac7406118a",
    "signature": "0x3f7957e65c3b5db580a2450802289c981bde3eb3a59efc40129af0dd5b940e3c429334daeb282afea584a54d36c018139b9ce6e30a2d6326245aeebbe81ce6df1b",
    "signer": "0x000B10C370371C106c4c813d2d86E481AA307357",
    "userId": "442697152"
  }
}