{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235245",
    "entityType": "User",
    "nonce": "0x6acd09eb2f7193ecf7165fc7f801edf7b0ae8d1b06ad1498388d1833ebf48aca",
    "signature": "0x409c6464cd1c5f96bf8b810fe98fa151d5154c11e0871a5a9a2165051548060c7c3bafd244393d89c868a78f9cc18229b195fe092cff7cd1438b3956665b6f291b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}