{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x0de69900983e1e2585308d1c1476d6a4d9aefcfcc754d9556017653c61ebee86",
    "signature": "0x2a2e8cf54a0e60220dadbc3fd3c57cdfdb26ca343c2ab07d93a3e47a4765ebc66257f8cdba716c03f1000339a3897b7cd19e19ec2df901a90af432fdd9afc51e1b",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}