{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe7a814cd8e8d43a082b0c3562a351673763afbf1c3a94168366bc9ceeb61c33",
    "signature": "0xd28acad04d33176251382889a1357fb8ea4fcdf819d01387cec15d2b0b3fbeb4274fa6d9cb25f9b8cd93871f581237cfabae77bdcbed9e800ffe33babf61c37a1c",
    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
    "userId": "502388335"
  }
}