{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372595",
    "entityType": "User",
    "nonce": "0xc4cedb0246b7809b7f53f512b086d299b82485363a99173d0e0df72b521e23c2",
    "signature": "0x33e1eac349ac5c983551b219ff62db442b0df172a74919c43f30b8f9c5895c9d28673c6b6de86fd3a885f60372e0d3fafc1a81f34fe96b3fe60966654f3d61911c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}