{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69de5cb0d4576de30efdd4cf80d7c19460267a3304702525376a54e8914484a3",
    "signature": "0xc5cb476dee2e3dfd238825601b1b9438db10932ecbf1b9a89d23d0a2d450bd0e1289a48fa761df73d73a367a356609c2a9c6e80e535d9446192b269488db3b8a1b",
    "signer": "0xbc6E180a2B541dBeFAcfa1EFf7b8F0CB4946aDb3",
    "userId": "542975484"
  }
}