{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39624",
    "entityType": "User",
    "nonce": "0x6663bd289725294268141b7b4b5c619c06b5015aeaf39448b17c97ec9dbca431",
    "signature": "0x2c5ee5766e18db6abeab2429fcff0351318241c89c8db5a8a57228722ae62c977e1bd8646c91ce50e899696b00f260925ac738249c33dfee552dde4862c7cfcc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}