{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x30ae0f04ca23a49b04d375f9cf8d9f3f96602563cbdadf8aeb21751a631ce20a",
    "signature": "0x21be029ad41fbde6696e760703a57487bb2df2d7c4a451f051a7bbc4c0294fe75ffd3b68bb7a8c087f6a6268d8acc16547b724ce842c7ac94f5f40821ae8c73f1c",
    "signer": "0x07cB076DaACCA202F3ffB2dF4A778b16AcEf28Ee",
    "userId": "998685050"
  }
}