{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf95845b90536693575b41c82515e37e9a23f6f7b584907d090ba1ecb7044418a",
    "signature": "0xf1bb40e90849b9a72b24eb4bca86e658cf4c527db0955d14c046bf03fcb95fa94cea8f4a54ace8d0e1fe2981653ee3f0a1f0c22d168f25f1d08da4f42a451e351b",
    "signer": "0x9833FfA856beA23F98Ee40D5Efc8f1c4c39877ff",
    "userId": "61775556"
  }
}