{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146522",
    "entityType": "User",
    "nonce": "0xab4950aa44de8481206f65194c84e3fce5f93ccc7ae19eab9b1126dbe75527a3",
    "signature": "0x67bd78c51470fcb5c6fdf9cb2783b6db268cce9cdaa106d6bcac25f9367466aa75e36549ba10823806767eff2e2264fb663575f8bc15c2b742f7f65306929f521b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}