{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172178",
    "entityType": "User",
    "nonce": "0x8b1908fdd07609cdda9f1d438ba8b15419a9986bb0e2d95e389962aad3bfa26b",
    "signature": "0xa350cac7ec38812758ff577a2a0b9fc2a0d9d6d8544da8adc5132b0ac80d93d51588500a21b772e94975712af8f36801777ca9de566f1ea4e7eceab53672f15f1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}