{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x554770becf08c0e0324535d2811a8fe68076b52c44c3f58c8e9bd6219d55065d",
    "signature": "0xc9200c4e2cb7c8638ace9032a757a38056f3f443bca2a3698065c72f6fcb493c3512cc5268682caabcd26b0083fb19b76b5ddee2c9c99e205da77ce6429968601b",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}