{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34fd5c0b07676150b52eafa802b54235839be42a9fca8ec05db242c19bd558d1",
    "signature": "0x00cee09e2850b95312f344411a168e983f003d5f7162817c3d0b844e795fa7346f03998651c69cd3c9f203bdbae0eeaad0cab72857c66192c55be4ddeace81711b",
    "signer": "0x57B6A8fC769958B12Af66AE51862ef0b8697A5b1",
    "userId": "722009332"
  }
}