{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104012",
    "entityType": "User",
    "nonce": "0x2bd80e2cf2cbaa8c4e068aed6ecef36f0452fec86695c9b7b95a2bc9eec37db6",
    "signature": "0x663c148711230423c9e8ca308ef701dfe23b105a26658324f23885fa07840522277626fc5b39e4bd9ac2b983b8da5cd4b8313a7ad0df1f4fd85d0a44a80e03d01c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}