{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0x8d2d064fbd4ab185bd1997214fc59576d1599f0b3f9f676cc6f373731a661e3e",
    "signature": "0x436e69645d9e178d7f709ef85c248c2871e05525cf9f373f4555ac3d19a75a8a6c027be0d4e77dead0382b14e0a04255618f3adafb60a1cf83f47436ffef937e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}