{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0x2571e85623eb10a9da82e3088daca2d1d6613434dc27a8a49774bbfef061386d",
    "signature": "0x2ee26d4e9f29009a504c00616b9b9186df1a17a38fcefb347b58022f569d94a85ab25eafdfff0879f47161692f137485476abcfee3f31c4361045e689c2b69b11c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}