{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1e5bd60fee0eb847ae43ba7146d11bd8de83f8389affe9286e4039f4b61d41cb",
    "signature": "0xe3f1a5e41c40f18fbbb3ba7ee76b887ce8302066505d87b37d1ede321524ee3f637547ef90cb5788b12eb42f979a098140d0cbdbfec2a51443c43078da267ff31b",
    "signer": "0xc65dFfE1a1134FA9B16cFAE24fCc4CA150E84FF6",
    "userId": "559081263"
  }
}