{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7323b02e0bac828b645ac97b832ff30cc48f6c3df3731a1246e5a273433ef8d",
    "signature": "0x1559b75cc5a2bfda7c38bd95d789d48333bc0571d0c0153410515208a6bae105431f97fb192ce2bb90a292d3758b352004f05b8c1149380e0704946b3a51c2131c",
    "signer": "0x17E41Fa889E2F72a21C27dfD96D51AFB54Ec6a95",
    "userId": "410384899"
  }
}