{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1450",
    "entityType": "User",
    "nonce": "0xc1bce1a2069eac6c59b3e8b80d4d3f56c22e02cf08e95a0bb5e661707ef22854",
    "signature": "0x9053ecbff05166cd072e2ad144d8d9df0afdcb099b33cf47e18b9c6526c68c9a099d22458c1a2bf9646219350ece6416509f0066be8560a8767bd7f6034e8efb1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}