{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xaa7a51e944085b589581c016c939164eab96f0765712a2117cd6ad58cb7924aa",
    "signature": "0x5ae6671d9d2415197617a172e532ba9989a9d2f7770466338e5c00ba8fc69bd73d5eed12bffc0e625614a7d86ec4db8c069bda1a0d6030676c42aa2e09591d221c",
    "signer": "0x7e1F8Ad5AC71ff7ECFaaB54D7C2Ca8C373DeD528",
    "userId": "674981811"
  }
}