{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682105279",
    "entityType": "User",
    "nonce": "0x223889cc27bc84a45e414a6c20269291ffc3b9ad11b7511129b6f9c1d3068404",
    "signature": "0xadc8ab6da5f462f337a79f3eb192b6980f23c081f7d8085403122e55910889ab53ef3477a4c23fb3ced615982c0a25503b66ce06dba9d228e0c52468c32f83ad1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}