{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370091516",
    "entityType": "User",
    "nonce": "0x62ef5da20b6dba13d49a13ae40841a747ab99bc6c37f9fc0b67beefb84370374",
    "signature": "0x0419d0b18d3d1aa6ef145b4e3f9310ab8d7a4a7bed032a2db90fde9b3611e0b50f2ba2069753fd1e5a28631eddbb749729a4af096eea29a92cb5bcd97f3e58711b",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}