{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328108",
    "entityType": "User",
    "nonce": "0xdc846006c4e31808bb246ee19eb2914ff4032663e1059b15c9ddcbc00e21a735",
    "signature": "0x0ae843f48d09b69040c817e7f20486b7ac6ab725267db16d80ceb5c12ebf963d337aadb3fec71ff4d4339f789e0baa3591b8a572f5501be2bf908f1f719b6ec31c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}