{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3288",
    "entityType": "User",
    "nonce": "0x1ec380be9909a197935de25cb57c8eac7c3af54157b6b84066acfd71e1608ad7",
    "signature": "0xe908ff3461797beef070d8d415c19d5f82621a85a98473e66e0cc6c512bea04d08d49faf0727c6e2e53fdbf4179a66ac778b82c4ca4f32579d9fdd8b9fc3bd371b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}