{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99409",
    "entityType": "User",
    "nonce": "0x53e09196df258a15318712e8027a89c0d563053da983d6426b085885b93cf6c7",
    "signature": "0x6a0492ccdd1ed830597a2fade1c75d28db7e3e9737d591dd885d557250c25aad128fbb04863b68132bfc0766380536770070c1aef5f6aed43826f8481b85d5e81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}