{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210352",
    "entityType": "User",
    "nonce": "0x842e9d828fbea15ba401773665dd24c1026ad35b34930d4e7f5fd5f3dd56c87b",
    "signature": "0x0831ddf7a15bb3f4377d8f3fc85dc6e02fc03cda4cfcc02a0c4e100c207a1f853ae545471089af4bb806041e99acaa5f15d8f8cfd2207546a1eaa9879c4b92231b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}