{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe533968f7db2dd04a88b0b3882c9083c2d491f237b3d279c1814c3e2cf141020",
    "signature": "0x5869213eed4674d7a8572075675586532c7f33152897b41cce63adf40f27c00d3f196ff71a3f8ed3fce2d804a55ab63946f127ab3196d4ff5b053a1e3a32ca1f1c",
    "signer": "0x7D54a8d4767c4545A38F5a106a20aC879E63CcED",
    "userId": "321160448"
  }
}