{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376830101",
    "entityType": "User",
    "nonce": "0xb46770fa6b3d1c5969fe96979e288504e7080344ae7c872b38ad434d7c3dad49",
    "signature": "0x8b5db55215005524c6d531741e516919b24213dc4caebbd2b66b84f0dfdd5b407223512f460bba15eef6d0f30493c58892a7d1d73fa636c2ef49e5f9d3dd61e11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}