{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704994",
    "entityType": "User",
    "nonce": "0x058e42e3bfead3d1244940df1ee18d5c4cc11352fada9c8c218b0ca37b351297",
    "signature": "0x90d1ad5f5e6a8ac88c1eb4dc3a2e77ef254e560560d47fff6f23a8766618a62b546b6239b7f51d3bb58282a6707514827a3183dad3fdae10b555b6867c39fe3b1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}