{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xadd46e833cd2919fcd0df70565a191259d3b495b7aa4fd7e34ebb4efe547194d",
    "signature": "0x0081b15ffe31472ec072c1b6061ab3ba44cc04341330f0a1f04936fd70d0cac568dd3dc5027219925873286ff7ce1a0dc86324618a3232749d1da75b47c5940a1b",
    "signer": "0x60cCc8C87B7510F9b32c67f6be0b3C7528FF15c3",
    "userId": "992921431"
  }
}