{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "371825",
    "entityType": "User",
    "nonce": "0x87e99910a41a5ce553ccc28fbd24eb7e57f7964126207bdf0c4e0a8af7598302",
    "signature": "0x2d3b96b93069d7e6927b97b34f43d56473d0e2a49f3f90c70098357bd7b71b6602f05f31fdf159f4023c53365c23b97bb0517c0019c0660554a84571278302e21b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}