{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0dfed4ebc2bc9ecc843d39f95d81df785bd36e1050e78cc899a92e42ab6e5923",
    "signature": "0xe90b8e5c7bc764fbcba6343a13a8e1b5510f7829d4d2ae0035bb7ac2e33c135c339b610fcac69666aebd80a741f532f03468c8d0dcba897609d8cc1ea3fb628b1b",
    "signer": "0xdc11541f049E5D0C27bcBb2B07117CBf13b6034d",
    "userId": "391568375"
  }
}