{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xeae2af07335ed23efe21d75124f65d0d8ac75478fdec15bc800c353649d1227f",
    "signature": "0xcc24225e9fc0e4edc2a0255fe3ac799298ddd7dbe156d2fa6616b518a25b27493f2f2564c97fa9bd73c217875bdf58e2b83e5f952d11f859c86c2b9a60868f501c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}