{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe64ca4589da1a6abfca3ce44250e81b3b16fbeef272938cd168767abad3470d9",
    "signature": "0xd14cbc298cbead69703df5a82b365f76463cd82f15158a497f5ab0010e9cbd5218443eec44b6044d4899fa880aeb89d7d6641943890b2673cea56ac11993d7c11b",
    "signer": "0xdEa594D771deE2b29bcC3eE52Edc8610d11571D6",
    "userId": "734363815"
  }
}