{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48a70de0f07322c6152b7a8f623a24544271f34ca243d772e8e06013007714ed",
    "signature": "0x2b234088873212373b3d39befc87f99da3e2d4e5ccfb5bd20771e6cf59d5f3bd383fa727582c7e72ba99d67427ff63eef28c58e8b86a77edcc330cd68282e4071c",
    "signer": "0x56316f6808E81302c00A8137bB213129885a0A8A",
    "userId": "561806050"
  }
}