{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173091",
    "entityType": "User",
    "nonce": "0x937e4081aad8cd316129b1b012a4d2c4138f161b4a58cbd85dff0d264162c608",
    "signature": "0x7a03a83af265d4a445db4c4d20a5070394e1ee9057c57682384c0f38f98c418d59ad4a92e47204d47ce05eb2ec233e1c2134033d1a6c3f1426b49cb9681a3cac1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}