{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708",
    "entityType": "User",
    "nonce": "0x009409d06c45b07ebedab6650acb26fa3c941a3e5a3eef6e5b1b667d4ec465f7",
    "signature": "0x1ce40a4e932363c01c0aad6a69bc27ac012ff7483035adf00cf233e1e101456066ec4aed4aef22967e94fd1580936c9eb7a5f818202f21bc0afefface8abb8971b",
    "signer": "0xdA708531501D4f46C162eDBca1D759CB6e7447c4",
    "userId": "985405611"
  }
}