{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0xb00b2567bc42d85705bf437d997a7f0d8790eefc5b3e021cd5813a37c03a1316",
    "signature": "0x21018fc2beff6daf326c009be910cddf81477b396ac531e060d5d15cdddd404336ae8cfb3aed172f271af6fc5a97318a84f3c59cc58ed5dd0813d780855f42be1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}