{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xc15aa56c1c0d798ed3803cf885dbdd6188e9f8870b2c9a2eb7f68c33da913897",
    "signature": "0x9d0547cb11883163563725af1ae0d87dfd56f92a61b735bb6ccfc8b7f6e60074661af3d13d78edb73f61d7dd70d5647329dc26386d6a353ff2abef99732547c91b",
    "signer": "0xc786627661302FDd2cFe2e72dBc92f07EB40a1Ad",
    "userId": "746647846"
  }
}