{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3012eca07cb7e0eff355fca2c2520e5c57796518abf962e1017b5b010552d4dd",
    "signature": "0xce79942b49bfcbb8d72c6f7cf2dcda027966fe30b21d6a8be83fe9725f1ec61f76dd97f81abccc8384f6a1369a7523cfd708d047500ffcffc4e2259f620145691b",
    "signer": "0x3B1A408F8F3Dde85C59FE03F196255E37E928CB0",
    "userId": "371765222"
  }
}