{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "731052685",
    "entityType": "User",
    "nonce": "0x1c484d637635f5ac28bedb2832353658b088ab47dc383eb9ccab53fd34545f90",
    "signature": "0x327ff61b6941142c008f16f5bac051959db2aaa70c70920f2ac42b25441a881c2706c41047c94848391a2c31c1367ba66cc18b4a8d15fbb2f3e7dfc59f56f7fe1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}