{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317951",
    "entityType": "User",
    "nonce": "0x9fb4775d570f0aab7f32395e46c7597f81c35943d5b411631cbd75cb212af995",
    "signature": "0xa4dd8619972bbcd3e2a6489dfb097f087e5415021ba5d0878e7487ca1d1310921cf8e5ea627663f843e01d9e11c7bbd4b19b6ee4fd9fcfe82617027b2cc89f0f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}