{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "359198",
    "entityType": "User",
    "nonce": "0xf44e7fee47c26de14dd86741e1bfa37ffad049051a77600e98627afe39a03403",
    "signature": "0x53dd2539e66ff99388b7a3851b4209741bf7af1589fb5637872ee5f880f928706e08c2db347e3c0bb900c668637ab77f8551d35f0edf8676e5a1d2e99783e8401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}