{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778215",
    "entityType": "User",
    "nonce": "0x6b77361134920aa587cddbe51abb1051d8b69d57129c406efaabbe38fdfe1cee",
    "signature": "0x6155c1e033b08c5421cc6d7e5362f4f7f643449248b0161017bd34d7f8098593486e0da7533c4c30a31a66a52b48151836967ebfcd2db2e3db0fdfa20b405cde1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}