{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x2fb9af765d7c9fa252f18cfbe98bbc843c21fa0664e56624e794b9c769e5dedf",
    "signature": "0xcfb2e12c27f100d1716fbd65353b951cf936e4c1392db596aa4ec3dcb5d1af8524d9ce5f5cff13fa168ba601db5bb61292e0dbaa656b2631dc69d6f3a8504bb11b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}