{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "459948",
    "entityType": "User",
    "nonce": "0x6154dbd843ae7e2044ca37a6c6fcd8fb6c08a7707f178dcc19cb5fb1ff865993",
    "signature": "0xbea786e4cb939ab8c086e937ebf1966c008b8ad1be6f7508f4310f6f4b479ec46a6e97a0e8b304d692679060ea7f130d871a5cd942fdfad0bee8b96eb1d4bb091c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}