{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387922",
    "entityType": "User",
    "nonce": "0x52758b560ca83ac8668022feec24676e08036f2e37057251920294032b681b48",
    "signature": "0x61e285c85d40c89bd3b26cf39947c85cf1da870f1f824b34c4f2fe59b5d3d6102b5c0f44476bd201fbdcf5abf837c6315d3afd265b7625877c3985810bc831541b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}