{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39979",
    "entityType": "User",
    "nonce": "0xf2e9c589607496b3ef0934a5c37e80fb4976c454c182af4a4f609964aa338b49",
    "signature": "0x3c5c5f0608ad4b4fb1c8caa1a34f073aa2e5cc707fb00873d085215e4cb368cc1e1962fc6d5c1d60e2b25d2d14ee7e5b5de9d4bc91e9f530dc2920c8dbc61c361c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}