{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347045",
    "entityType": "User",
    "nonce": "0x00bbf03b6cb50757902d7800a6bd60f105bf499a3cf89fa36ba70bedd98d2665",
    "signature": "0xd5f74a887d394555afc082c15d0b51284730805fc22fdce3aac2135ccc69608351ce19c74a16c8a1a8923d0615a7a87bd6eceb71fecd5cc1e6b2f3bc6b2c2f031c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}