{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1e2754549f8f981d217cce04544099cd39aaad6e832ca93506a10df78cddc5f7",
    "signature": "0x3530b091b501f4677396e9dd6872da14e995aac8dafee8437c2d862ede5d86bc780b7f3c56990e097c01b5c80188f32c1f2bd997c88baa66879fe3f6592606d01c",
    "signer": "0xfa60C9b08a5Aca204F9c509Fd51FEdb4F4aA13f1",
    "userId": "471924477"
  }
}