{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38886",
    "entityType": "User",
    "nonce": "0x893c71aa37c2e60a71d8c3bee1502027bb1052fbdf4094255b1b90a8570ba999",
    "signature": "0x0511a20a0852cb2470585a715dd39da75373428dd9fe142e642aae2ad345a1265ea7f3852723c4ab4a3becda50378eff9a57b57aba0801fd91c6862c0b5a76ea1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}