{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858059039",
    "entityType": "User",
    "nonce": "0xddd8c3e20711dbbb41e962a6c3040ac066f789c5606b30b4495d24618bb98ea3",
    "signature": "0xc8f3364436c80e9f2f765808b1ef6c6608fc2a9182d2841fd7340169143147684ecaffa7f490c4d667c0fc36584447fa7393cf66566234090f41bce01be085791c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}