{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90a9da4e0ceeeb8b23cc2a7111977f0e7942e0e22faca952a96dcb012fb8b7e6",
    "signature": "0x4cfb164934e3eb47a27ce407f3cfcc10e6a24204602791c9ba07baf61aa2d9862ddecd9d9557902d48150d3658f86fe31f1e585de2080c87c3fad22dd71e71751c",
    "signer": "0x2cA6959EB4081FdF36aAd22758bf3f9a6939f6ca",
    "userId": "827796955"
  }
}