{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176232909",
    "entityType": "User",
    "nonce": "0x6675f6f99064d4f80edf7b97001a0eabae3d3ae430023f8a8c836451ffe94ff1",
    "signature": "0xfc32b13190eb5b55e0909df4c2ddbd134ecdb0262311b5edf43441e2217fd032738b6dff7a369c4578b5f65956b5c01d1169f125638cdfad1b3c2a4a2e45925b1b",
    "signer": "0x87D7C39776EE053A673F2cad66cBB913821Ba559",
    "userId": "324886"
  }
}