{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "429887",
    "entityType": "User",
    "nonce": "0xbe83eced0ed643eb376676eccd1f3919bc774faf5b2a5eae84155c75f25d3e65",
    "signature": "0x56f5e4e538f718a45eaedced75d3150221f7010c2b588a001684df4d9d7dbfc067b9e2f955802fcbebc9effefa4265cb4d5f6e5e7f99327317a0cf0273d859ed1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}