{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56576",
    "entityType": "User",
    "nonce": "0xd624f5921f5f368f77962cc9a4d3ea8e9094863a143bd61107218b7f8a3ba927",
    "signature": "0xf18b3e38bc4ebdd3111bb2d4ba7722703f4459e28f49a691e171f7c50741b58a7c9263130c82710581d73d86db0ea1320ca7b351f2cea52524c440c96ae8a3e31c",
    "signer": "0x3D8B2928f8C6d3a1605187DacEb37824a527A1cB",
    "userId": "394450"
  }
}