{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x70d74bbca4759b10f15255c190407f43b4e0bd60a741cdd62c7adbf9070cc52d",
    "signature": "0xa110628d29b5cb8fd86bb8f5b53a52ae28a40b0aad1eeefd1efc12991408d03305460d8f059e1d43bd3748779f299960b9c59c725fab2bf91396dfce4a6166a91b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}