{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0xa38f88baa192b3f5bf44c41328446dd39e2a4aa0f70ac280ada51c016325b79e",
    "signature": "0xbdfdc4e9424dbada60ebc2f1877876ea9e6dfd0ccffce64b9c5af62027b69ecf028902f8ae0c4e49719730623fb50526b089c64c6476e7c5618274649b8307991c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}