{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "851552461",
    "entityType": "User",
    "nonce": "0x6a5ed5cfe1af5f89780943a59e19c2adc4aca37b2498d3927923a269afe37476",
    "signature": "0x6b627a5784da9c4f1bed8f87d1c97bfbe70196673ea8a4dce968d42f590612015ef0a9b4430f82cbfe04a7f92cc63f32fcda08546f729220ad2096c48f5b52311b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}