{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317380",
    "entityType": "User",
    "nonce": "0x9536d60f4e94c08a3cacb114f2ea0b520a39c9397a0e849c8d5b15da78caafdf",
    "signature": "0x8276ce41c5201c11ab24f7fea42079d1f022410319e4f6ce8db1432db605c8633cdca0ba3d1fc669c5d74c886e669b98d968383d0b9b350f63105bd9d59cce341b",
    "signer": "0x3D8B2928f8C6d3a1605187DacEb37824a527A1cB",
    "userId": "394450"
  }
}