{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e8342ab9ae09395a1bf4c9449c2eb3eea1dab564a6aa44949b32fc18d4b08f8",
    "signature": "0xf976cd4dc461c715e96a416aeb265abfc7fc73ac487ce1f35557fabe7520817f585f0b069fbbf4fa84777b326373f9c6e7e163cfb07d951d6b7f33ae9143569b1b",
    "signer": "0x0ccdB6C65469F4D2551A5794B498030d4Cb5555C",
    "userId": "477594951"
  }
}