{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2017843",
    "entityType": "User",
    "nonce": "0x78216e5b1e5ad794a1bb7b294492283bcf4064ee7db757bf20a123b37d0b5b99",
    "signature": "0xa1e6b3944b21dc7c54d86159f8d1d1aed1d10273700b339f062b368d2c515a6e21c270372acd18ca1c1e723e9a6b786da310271e782277f65e91c60b55a538f81b",
    "signer": "0x704653bB668e896c8DDd4eC5c2D37760788E2c1D",
    "userId": "602084182"
  }
}