{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xd79b824fb533e678702dce513e2d06010be8cb2fb208b879e935141bb379d7d4",
    "signature": "0x4471a3c51fef3e9ab95df4b4f440710254e85236f17678d1bc01bef6860f4de668f01233c0f0c132d49253b8f3c90680ae7703a34de83f3dc107a5619d8706981b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}