{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4318",
    "entityType": "User",
    "nonce": "0x9f6ab78a69e956c39d1f6074272731326910124e384a35dcb8573c187fc08159",
    "signature": "0xa6f62c058e17293cf5e946b2661ec8478b6a79ec3d40d15ca62aeb389e9f2e1b02ac92cca59a35740fab85e83ecc19d70060b3b503d54eec1e86ed94f89c94891b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}