{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243128083",
    "entityType": "User",
    "nonce": "0x35a1f37ea66279c515f19ba30b4c03878cf03de13ddf6efec070d84e3c247fa3",
    "signature": "0xcd246e3291735d1ef7376ffd181c77f21b89493ff216f13694af373df4f6a0f14ee4d7f9b66a6e8020e7cc883e68c5b96d38e46a4a3e19d50fa48d406044d0b61b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}