{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137494",
    "entityType": "User",
    "nonce": "0x9d4941bf289cb5ff3f1fc5eba5af2ad9158ab0f99f64482f7486029e12c25a5d",
    "signature": "0xce0a72d19c0f4393b8e616a61ef0d745b3ca28837beeb0f8b7f2d9ee2098affd52f08c6438a9e3f25c03a452b0b83652188a70f2becc373acced441b3ea4fccd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}