{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x865fcc3d18901a013ef2494d097550bd4178f529bbb692b1981d45b781d67b9a",
    "signature": "0xc090b18d875710f9588d952cfca656726a5607eea4cb193a93ee2fde2c6e65141b4f8adbf791b53ac1715f2f79b497e6e763c269ee9f0447da32364854561e201b",
    "signer": "0x4a57e2DeD165f5711bbB2bFF6253838BcFee1928",
    "userId": "268361684"
  }
}