{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52412",
    "entityType": "User",
    "nonce": "0xccb4f020ede163fdfd7bdb709894b0bd358699657c5582bff3b7349eb366a1ff",
    "signature": "0x54cdd517a325e628a0569333abc72907e5723247fe159619a56092ba001bb87e31df69c7c0d72b871a0660100725ee32cbba20d7ce17d8aee2825b88686e46841b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}