{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665",
    "entityType": "User",
    "nonce": "0x0a284f9ab59eba005956314f15b607c6c075b72163a2658fa497d2620c13b834",
    "signature": "0x08ce6b6086dc969e3dce8d1e37877b8e6a279475d3f163db56b2fbab3aa984923dc6a69241b9ef2c0675e56f37ad83467b44562299b586c00db5a6f5da8557771c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}