{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "508404",
    "entityType": "User",
    "nonce": "0x6ebe21973f3a31271cc745ffa0f63b3c2dd15d5b94c71f01b289e0709d1c7351",
    "signature": "0xaba761b063865813597969b8229f8ac64b62d03f102cb6481f32e8f0a77367603f5f20e23238c063f1f9fbe523c8f949578585266cd82fef0be6633fce656e6c1c",
    "signer": "0x4A868B813a8F5D7C187F9f07a2D7e7A24355Cf3f",
    "userId": "185302"
  }
}