{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1438540",
    "entityType": "User",
    "nonce": "0x2971fa14f97b9287ff2a87282e771410d3a2c40b2feaa2c4a3451eb823ff620c",
    "signature": "0xd788bf70ee3894e131d1f5bc36474e4519b9a504cb7a5426cde1c8f070f82e3e6974c8c22ee8a394e97767a2e463a756312b2caf0a9c9c42d99e7758af5c77341c",
    "signer": "0x97EC3C617a694b06E5b703206e8a911eA15c595d",
    "userId": "590549095"
  }
}